The substances sodium (Na), oxygen (O2), and sodium oxide (Na20) participate in this chemical reaction
4Na + O2 + 2Na20.
Which statement best describes the reaction?
A. Elements rearrange, but no compounds are created or destroyed.
B.
OC.
Sodium oxide is created by the chemical reaction.
Atoms from sodium oxide rearrange to form sodium and oxygen.
In a mixture of the three substances, sodium oxide separates from the sodium and oxygen.
D.
What is the answer

Answers

Answer 1

Answer:

C

Explanation:

This is a synthesis or a combination reaction , which involves the oxygen combining with sodium to make one compound.

hope it helps.

you're welcome.


Related Questions

1) What does a steep gradient and a shallow gradient mean on a graph of time (x-axis) and volume of gas produced mean?

Answers

Answer:

precise meaning in mathematics than the way it is often used in science. ... gradient at any point along the line is the same. For a curve ... Many graphs have 'time' as the variable on the horizontal axis, and indeed the language that ... represents the relationship between the volume of a fixed mass of gas and its temperature.

Explanation:

In Hawaii, the mongoose was brought to the islands to control the snake population. It thrived, and now the mongoose population is rampant. Which threat to biodiversity describes this situation?

Answers

Answer:

Introduced species (invasive species)

What is the mass of 2.64 moles of water

Answers

Answer:

47.5603392 grams

Explanation:

What is the hydroxide ion concentration of an acidic solution with a pH of 4.50

Answers

Answer:

0.000032 mol/l

Explanation:

A solution that has a higher concentration of hydrogen ions than water is known as an acidic solution and basic or alkaline solutions have a lower concentration of hydrogen ions than water.

The nucleus of a hydrogen atom separated from its electron is known as a hydrogen ion.

pH of an acidic solution (n) = 4.50

Hydroxide ion concentration of an acidic solution = [tex]10^{-n}=10^{-4.50}=0.000032\,\,mol\,/\,l[/tex]

Describe and explain the stages of making copper chloride crystals and acid.

Answers

Answer:

Add excess copper carbonate to hydrochloric acid in a beaker, stirring until there is no further reaction. Filter the mixture to remove the remaining copper carbonate, then heat the remaining solution to the point of crystallisation. Leave the solution to cool and collect the crystals formed by filtration.

Explanation:

Answer:

CHICKEN

Explanation:

EGG

LEG

PIC

If i have a 50 liter container that holds 45 moles of gas at a temperature of 200 degrees C, what is the pressure inside the container? Step by step answer please.

Answers

Answer:

34.91 atm

Explanation:

Step 1:

Data obtained from the question include:

Volume (V) = 50L

Number of mole (n) = 45 moles

Temperature (T) = 200°C

Pressure (P) =?

Note: Gas constant (R) = 0.082atm.L/Kmol

Step 2:

Conversion of celsius temperature to Kelvin temperature.

T (K) = T (°C) + 273

T (°C) = 200°C

T (K) = 200°C + 273

T (K) = 473K

Step 3:

Determination of the pressure.

The pressure inside the container can be obtained by using the ideal gas equation as follow:

PV = nRT

Divide both side V

P= nRT / V

P = (45 x 0.082 x 473) / 50

P = 34.91 atm

Therefore, the pressure inside the container is 34.91 atm

The pressure inside a 50 liter container that holds 45 moles of gas at a temperature of 200 degrees is 34.90 atm.

What is ideal gas equation?

Ideal gas equation is a hypothesis which shows the behavior of gas at different conditions and it will be represented as:

PV = nRT, where

P = pressure of gas = to find?

V = volume of the container = 50 L

n = moles of gas = 45 moles

R = universal gas constant = 0.082atm.L/Kmol

T = temperature = 473 K

On putting all these values on the above equation, we get

P = (45)(0.082)(473) / (50)

P = 34.90 atm

Hence required pressure is 34.90 atm.

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how energy is conserved?

Answers

Answer:

The law of conservation of energy states that the total energy is constant in any process. Energy may change in form or be transferred from one system to another, but the total remains the same.

Explanation:

Which strutcure capture enegry from sunlight ?

Answers

Answer:

Chloroplasts

Explanation:

Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll. Chlorophyll absorbs certain portions of the visible spectrum and captures energy from sunlight.

You exert the same force on two objects of different masses. Which object will have the greater acceleration? Explain your answer.

Answers

When the same force is applied to two objects with different masses, the object with the smaller mass will experience a greater acceleration.

How to get the object

This is in accordance with Newton's second law of motion, which states that acceleration is inversely proportional to mass when force is constant.

Less massive objects accelerate more easily in response to a given force, while more massive objects require a greater force to achieve the same acceleration.

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The object with the smaller mass will have the greater acceleration.

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its  mass. This relationship is given by the equation:

[tex]\[ a = \frac{F}{m} \][/tex]

where [tex]a[/tex] is the acceleration, [tex]F[/tex] is the force applied, and [tex]m[/tex] is the mass of the object.

 Given that the same force [tex]F[/tex] is applied to two different objects, the acceleration [tex]\( a \)[/tex] of each object will depend on its mass [tex]\( m \).[/tex] If we denote the force as \( F \), and the masses of the two objects as [tex]\( m_1 \) and \( m_2 \),[/tex] with [tex]\( m_1 < m_2 \)[/tex], the accelerations [tex]\( a_1 \) and \( a_2 \)[/tex] can be calculated as:

[tex]\[ a_1 = \frac{F}{m_1} \][/tex]

[tex]\[ a_2 = \frac{F}{m_2} \][/tex]

Since [tex]\( m_1 < m_2 \)[/tex], the fraction [tex]\( \frac{F}{m_1} \)[/tex] will be greater than [tex]\( \frac{F}{m_2} \),[/tex]which means that \[tex]( a_1 > a_2 \).[/tex]

Therefore, the object with the smaller mass [tex]\( m_1 \)[/tex] will have the greater acceleration [tex]\( a_1 \)[/tex] when the same force [tex]\( F \)[/tex] is applied to both objects.

This conclusion is consistent with the inverse relationship between mass and acceleration as described by Newton's second law.

(PLEASE HELP ASAP!!!!!!)
Which statement best describes resistance? Resistance is:
A: how well a current will flow in a material and is measured in volts

B: how well a material conducts an electrical charge and is measured in ohms

C: the ability of a material to attract a positive charge to create a current

D: the ability of a material to repel neutral charges and is measured in ohms

Answers

Answer:

A. How well a current will flow in a material and it's measured in volts.

D. The ability of a materiel to repel neutral charges and measured in ohms

8. Which is a nonrenewable resource?
7 points
coal
water
soil
wood
ANSWER PLEASE:)

Answers

Answer:

Coal

Explanation:

Once it's all been mined, there's no more. It's not like we grow it.

Coal is a non-renewable resource because it’s a fossil fuel that takes millions of years to form.

What is the coefficient?
A. A whole number that appears in front of a compound or element in a balanced chemical equation.
B. A whole number that appears as a subscript in front of a formula in a balanced chemical equation
C. A whole number that appears as a subscript at the end of a formula in a balanced chemical equation.
D. A whole number that appears as a subscript at the end of a formula in a balanced chemical equation

Answers

Answer:

A. A whole number that appears in front of a compound or element in a balanced chemical equation.  

Explanation:

That's the definition of a coefficient.

B, C, and D are wrong. Subscripts are not coefficients.

In your body, carbon dioxide, CO2, dissolves in the blood to form carbonic acid, H2CO3 as follows:

CO2(g) + H2O(l) ⇆ H2CO3(aq)

After heavy exercise, your body builds up carbonic acid, which can become toxic in high enough concentrations. This can lead to panting like a runner after a race which helps you to more quickly breathe out carbon dioxide and reduce its concentration.

1) What is the effect on the reaction balance of panting?
2)What will be the effect on the concentration of carbonic acid – explain your reasoning
3)If you hike to the top, would the low pressure at high altitude help reduce or increase the carbonic acid concentration? – Explain your answer.
4)Some carbon dioxide dissolves in your blood directly as CO2(aq). What is the effect of the lower pressure at a mountain top on the ability to directly dissolve CO2(g)?


Answers

Panting after exercise reduces carbon dioxide levels in the blood, decreasing carbonic acid and helping restore pH balance. At higher altitudes, lower pressure reduces blood's capacity to hold CO₂, potentially leading to decreased carbonic acid concentration but also complicating the body's regulatory mechanisms. Direct dissolution of CO₂ in the blood is also affected by lower pressure.

Effects of Panting and Altitude on Carbonic Acid Concentration:

Panting after heavy exercise increases the expulsion of carbon dioxide, which in turn decreases the concentration of carbonic acid in the blood. This process reestablishes the pH balance, reducing the risk of acidosis caused by the buildup of lactic acid and carbonic acid during strenuous activity. Furthermore, hiking to a higher altitude, where the pressure is lower, would reduce the ability of blood to hold carbon dioxide. This reduction leads to faster removal of carbon dioxide from the blood, which would tend to decrease carbonic acid concentration. However, due to reduced oxygen availability and potential respiratory adjustments such as hyperventilation, the effect on blood pH can be complex at high altitudes.

Lower pressure at high altitudes also affects the direct dissolution of carbon dioxide (CO₂) in blood. At lower pressures, less CO₂ can be dissolved directly, which might necessitate increased respiratory rates to compensate for the reduced ability to carry carbon dioxide away from tissues. Overall, both mechanisms work to ensure the body can maintain a stable internal environment, particularly during varying physical demands and environmental conditions.

Which of the following always changes when transmutation occurs?
The number of electrons
The mass number
The atomic number
The number of neutrons

Answers

Answer:

The atomic number

Explanation:

Transmutation refers to the conversion of one chemical element into another. A transmutation usually involves a change in the structure of atomic nuclei and this may be induced by a nuclear reaction.

Transmutation was first achieved in 1919 by Lord Rutherford when he successfully changed a nitrogen nucleus to an oxygen-18 isotope, producing a proton in the process.

Since transmutation often involves changing one atom into another, the atomic number or mass number of the original element always changes (to form a new element) in the process.

If there was a high pressure system in your area and a bunch of clouds were blown in from a different direction, how would the pressure system in your area change? Would it change or stay the same

Answers

The pressure system in the area would likely change due to the introduction of clouds from a different direction.

Clear skies in a high-pressure system occur because descending air inhibits cloud formation; cloud movement suggests a different air mass.

Arrival of a cloudy air mass can disrupt the existing high-pressure system by weakening it.

The high-pressure system might shift position, moving away or being displaced by the incoming low-pressure system.

Persistence of the high-pressure system depends on its strength and reinforcement by other atmospheric conditions; clouds may be temporary.

Interaction between high and low pressure can form a frontal boundary, triggering weather changes like precipitation.

Cloud introduction from another direction indicates a weather pattern change, affecting the area's pressure system.

Outcome varies based on the strengths and characteristics of both pressure systems and the associated air masses.

Choose the phrases that you think of when you hear the word Sun. Check all that apply.
center of the solar system
hot
sunburn
solar energy
star
source of energy for life
solar radiation

Answers

Answer:

The answer is all of the above

A) Center of the solar system

B) hot

C) sunburn

D) solar energy

E) star

F) source of energy for life

G) solar radiation

The study of stars and planets is called cosmology.

The correct answer is all of them.

Sun is the celestial body that gives us the energy to make all the things on the earth.

All the option is justified as follows:-

Sun is the center of the solar system and all planets revolve around it.Sun is very hot its surface temperature is 15000CSun can cause sunburnThe energy which is produced by the sun is called solar energy.Sun itself a starThe source of energy on earth is the sun because it is used by plants.Sun emits solar radiation.

Hence, the correct option is all of them.

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somebody who know this science humor pleaseeee

If you only have 50% of something, which element
must you have? (Remember, this is science
HUMOR!!! Yesterday's answer was Argon - because
if there are no bananas left it means they "are
gone"- get it?!)​

Answers

Answer:

Hafnium

Explanation:

I'm guessing based on the sound of the name, because hafnium kind of sounds like the word half, or 50%. Hope this helps!

Answer:

Hafnium

Explanation:

Multiple Choice

A scientist performs an experiment on an unknown element. She finds that the unknown element forms an ionic bond with beryllium (Be). She concludes that the unknown element must belong in group 2 of the periodic table. State whether or not you think this result supports her conclusion, and why.

A) No. Beryllium is in Group 2 and is unlikely to react with another Group 2 element.
B) No. Group 2 elements are generally unlikely to react at all.
C) Yes. In an ionic bond, elements share an electron, so this is a logical conclusion.
D) Yes. Ionic bonds only form between elements of the same group.

Answers

Answer:

A

Explanation:

I Took the test

A metal does not form ionic bond with other metals. All the group 2 elements are metals. They cannot form compounds with each other. Therefore, option A is correct.

What is ionic bonding ?

Ionic bonds are formed between metals and non-metals. Metals are all electropositive and they easily loss electrons to form corresponding cations.

Non -metals are mostly electron deficient and will gain electrons from metals to achieve octet. Non-metals form their anions and they combine with the cations electrostatically form the ionic bond.

No two metals can form a compound together. They both form positive ions and repel each other. Therefore, beryllium cannot form compounds with elements of its own group which are all metals. Hence, option A is correct.

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A student prepares 150.0 mL of 1.40 M HCl using 35.0 mL of a stock solution. What is the concentration of the stock solution? Use M subscript i V subscript i equals M subscript f V subscript f..

Answers

Answer:6.0M

Explanation:see attached photo

The concentration of the stock HCl solution used to prepare 150.0 mL of 1.40 M HCl from 35.0 mL of the stock solution is 6.00 M.

To find the concentration of the stock solution of HCl used to prepare a diluted solution, we can use the dilution equation MiVi = MfVf, where Mi and Vi are the concentration and volume of the initial stock solution, and Mf and Vf are the concentration and volume of the final diluted solution.

In this case, the student has prepared 150.0 mL of 1.40 M HCl by diluting 35.0 mL of a stock solution. To find the concentration of the stock solution (Mi), we rearrange the equation to solve for Mi:

Mi = (MfVf) / Vi

Substituting the given values:

Mi = (1.40 M × 150.0 mL) / 35.0 mL

Mi = (210.0 × mL) / 35.0 mL

Mi = 6.00 M

Therefore, the concentration of the stock HCl solution is 6.00 M.

Tritium is an isotope of hydrogen (H) that has:
A. 1 proton and 0 neutrons
B. 2 protons and 1 neutron
C. 1 proton and 2 neutrons
D. 1 proton and 1 neutron

Answers

D. 1 proton and 1 neutron

Answer:

D.1 proton and 1 neutron is the correct answer    

Explanation:

Why is a 13 placed in front of the oxygen on the perodic table
A) It is a subscript representing that there are 13 oxygen atoms in an oxygen molecule
B) It is a coefficient representing that there are 13 oxygen atoms in the reactants
C) It is a coefficient representing that there are 13 oxygen molecules in the reactants
D) It is a subscript representing that there are 13 oxygen atoms in the reactants

Answers

Final answer:

A number placed in front of a compound or an element in a chemical equation, such as 13 in front of oxygen, is a coefficient that indicates the number of molecules present, meaning there are 13 oxygen molecules in the reactants.

Explanation:

When you see a number placed in front of a compound or an element in a chemical equation, such as the number 13 placed in front of oxygen, this number is referred to as a coefficient. Coefficients are used in chemical equations to indicate the number of molecules or atoms involved in the reaction. Unlike subscripts, which denote the number of atoms of an element within a molecule, coefficients tell us how many units of a molecule or an elemental atom are present. Therefore, if we see a 13 in front of oxygen in a chemical equation, it indicates the presence of 13 oxygen molecules. This means that the correct answer is "C) It is a coefficient representing that there are 13 oxygen molecules in the reactants".

Initial temperature of metal =
°C
Initial temperature of water =
Final temperature of both =
DONE

Answers

Answer:

the correct answers is 100 22.7 and 24.6

Explanation:

did it on edgunity

The metal is initially heated to a temperature of 100°C. The water's original temperature is 22.4 °C. Both have a final temperature of 27.1°C.

What is the initial temperature?

The initial temperature, which is established following the movement or movement of the full and closed container, is indeed the average temperature of the lowest container to be taken into account at the start of the hot temperature cycle.

Initial temperature refers to the average interior temperature of the coldest processing container at the start of the thermal processing cycle, as assessed following a thorough stir or shake of the filled and sealed containers.

Thus, the metal is initially heated to a temperature of 100°C. The water's original temperature is 22.4 °C. Both have a final temperature of 27.1°C.

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Your question is incomplete, most probably the complete question is:

Measure the initial temperature of the water to the nearest 0.1c record in the date table.

Initial temperature of metal =

°C

Initial temperature of water =

Final temperature of both =

A diver has a lung capacity of 2.4 L when the pressure is 0.8 atm. What is the volume of the diver’s lungs when the pressure changes to 1.2 atm?
a) 1.60 L

b) 2.50 L

c) 3.60 L

d) 1.40 L

Answers

Answer:

The final volume is 1.6 L.

Explanation:

It is given that,

A diver has a lung capacity of 2.4 L when the pressure is 0.8 atm. We need to find the volume of the diver’s lungs when the pressure changes to 1.2 atm. Let V₂ is volume.

It is based on Boyle's law. According to this law,

[tex]PV=K[/tex]

K is constant

[tex]P_1V_1=P_2V_2[/tex]

[tex]V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{0.8\times 2.4}{1.2}\\\\V_2=1.6\ L[/tex]

So, the final volume is 1.6 L.

Which sample would have the same number of molecules as 11.2L of He (g) at 273K and 202kPa?
1) 11.2L of N2(g) at 300K and 202kPa
2) 22.4L of Ne(g) at 546K and 404K
3) 11.2L of CH4(g) at 273K and 202kPa

Answers

Answer: 11.2 L of [tex]CH_4(g)[/tex] at 273K and 202kPa

Explanation:

According to ideal gas equation:

[tex]PV=nRT[/tex]

P = pressure of gas = 202 kPa = 1.99 atm  ( 1kPa= 0.0098 atm)

V = Volume of gas = 11.2 L

n = number of moles = ?

R = gas constant =[tex]0.0821Latm/Kmol[/tex]

T =temperature =[tex]273K[/tex]

[tex]n=\frac{PV}{RT}[/tex]

[tex]n=\frac{1.99\times 11.2}{0.0821 L atm/K mol\times 273K}=0.99moles[/tex]

According to avogadro's law, equal number of moles occupy equal volumes and contain equal number of molecules at same temperature and pressure conditions.

As 11.2 L of [tex]CH_4(g)[/tex] at 273K and 202kPa will have same moles as 11.2L of He (g) at 273K and 202kPa, thus they have same number of molecules.

Final answer:

Using Avogadro's Law which states that equal volumes of gas at the same temperature and pressure have the same number of molecules, the gas that has the same number of molecules as 11.2L of He (g) at 273K and 202kPa would be 11.2L of CH4(g) at 273K and 202kPa.

Explanation:

The concept we need to understand to answer this question is the Avogadro's law, which states that equal volumes of all gases, at the same temperature and pressure, have the same number of molecules. Thus, regardless of the specific gas, 11.2L of any gas at 273K and 202kPa will have the same number of molecules.

Therefore, the sample that would have the same number of molecules as 11.2L of He (g) at 273K and 202kPa would be 11.2L of CH4(g) at 273K and 202kPa. The other two samples have different conditions and thus would not have the same number of molecules.

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A 1.5L sample of a gas at 150kPa and 250K is changed to STP. What is the new volume?

Answers

Answer: The new volume is 2.4 L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

where,

[tex]P_1[/tex] = initial pressure of gas = 150 kPa

[tex]P_2[/tex] = final pressure of gas =  101 kPa (at STP)

[tex]V_1[/tex] = initial volume of gas = 1.5 L

[tex]V_2[/tex] = final volume of gas = ?

[tex]T_1[/tex] = initial temperature of gas = 250 K

[tex]T_2[/tex] = final temperature of gas = 273 K ( at STP)

Now put all the given values in the above equation, we get:

[tex]\frac{150\times 1.5}{250}=\frac{101\times V_2}{273}[/tex]

[tex]V_2=2.4L[/tex]

Thus the new volume is 2.4 L

To find the new volume at STP, the combined gas law is used. The initial conditions (150kPa, 1.5L, and 250K) are set equal to the final conditions at STP (101.3kPa, V2, and 273K), then solved for V2 to get the new volume in liters which is 2.42L.

To determine the new volume of the gas at standard temperature and pressure (STP), we can use the combined gas law which states that the ratio of the product of pressure and volume and the absolute temperature of a gas is constant, provided the amount of gas remains constant. For the 1.5L sample of a gas at 150kPa and 250K when changed to STP, we assume the STP conditions to be 0°C (or 273K) and 101.3kPa.

First, we convert the initial pressure to kPa if it is not already, and we confirm that the initial temperature is in Kelvin. Then we can plug our known values into the formula:

P1 * V1 / T1 = P2 * V2 / T2

Where P1 and V1 are the initial pressure and volume, T1 is the initial temperature, P2 and V2 are the final pressure and volume, and T2 is the final temperature at STP.

In this case, we have:

150kPa * 1.5L / 250K = 101.3kPa * V2 / 273K

When we solve for V2, we get:

V2 = (150kPa * 1.5L / 250K) * 273K / 101.3kPa

V2= 2.42L

Performing the calculation we get the new volume of the gas at STP which is 2.42L.

What mass of H₂O is formed when excess H₂ reacts with 64 g of O₂? *
2H2+O2 -->2H2O


Answer: 72g

Answers

Answer:

72g of H2O.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

2H2 + O2 —>2H2O

Next, we'll determine the mass of O2 that reacted and the mass of H2O produced from the balanced equation.

This is illustrated below:

Molar Mass of O2 = 16x2 = 32g/mol

Molar Mass of H2O = (2x1) + 16 = 18g/mol

Mass of H2O from the balanced equation = 2 x 18 = 36g

Summary:

From the balanced equation above,

32g of O2 reacted to produce 36g of H2O.

Now, we can obtain the mass of H2O produced when 64g of O2 react as follow:

From the balanced equation above,

32g of O2 reacted to produce 36g of H2O.

Therefore, 64g of O2 will react to produce = (64 x 36)/32 = 72g of H2O.

From the calculations made above, 72g of H2O is produced from the reaction.

Which of the following is NOT involved in recording climate data?
A. Investigating air bubbles trapped in ice cores.
B. Analyzing species of pollen.
C. Identifying phosphorus levels in fossils.
D. Studying tree rings.

Answers

Final answer:

The method not involved in recording climate data is identifying phosphorus levels in fossils. Climate scientists commonly use ice cores, pollen analysis, and dendrochronology to understand past climate conditions.

So, the correct answer is C. Identifying phosphorus levels in fossils.

Explanation:

The option that is NOT involved in recording climate data is indentifying phosphorus levels in fossils. Phosphorus levels in fossils are typically not used to record historical climate data. Instead, they may be more relevant in studies of biogeochemical cycles or ancient ecosystems.

Climate scientists use various methods to reconstruct past climates, known as proxy data. Some of the common proxies include:

Investigating air bubbles trapped in ice cores to analyze atmospheric composition and temperature from the past.Analyzing species of pollen to infer the types of vegetation and therefore the climate of the time.Studying tree rings, also known as dendrochronology, which can indicate the age of a tree and provide information about historical weather patterns and climate conditions.

Each of these methods contributes to the understanding of Earth's climate history and changes over time.

So, the correct answer is C. Identifying phosphorus levels in fossils.

Final answer:

Identifying phosphorus levels in fossils is NOT involved in recording climate data. Tree rings, ice cores, and pollen analysis are used to study past climates. Phosphorus levels give geochemical information not directly related to climate.

Explanation:

Of the options provided, the one that is NOT involved in recording climate data is C. Identifying phosphorus levels in fossils. The other options, like investigating air bubbles trapped in ice cores, analyzing species of pollen, and studying tree rings, are all common proxy methods used by scientists to reconstruct past climates. Phosphorus levels in fossils generally provide information related to the geochemistry of the environments where the organisms lived, rather than direct climate data.

Both tree rings and ice cores are essential proxies in paleoclimatology. Tree rings provide annual records that can be used to infer temperature and precipitation patterns, while ice cores can reveal atmospheric composition and temperature data over longer time periods. Pollen analysis helps in reconstructing past vegetation and therefore, the climate that supported such vegetation.

Identify the acid-conjugate base pair in this balanced equation:

H2SO4 + 2NaOH → 2H2O + Na2SO4

H2SO4/H2O

H2SO4/Na2SO4

NaOH/H2O

NaOH/Na2SO4

Answers

Answer:

The answer is B. H2SO4/Na2SO4

Explanation:

Answer:

b

Explanation:

5. If there is 7.7 moles of gaseous nitric acid at a pressure of 0.09 atm and
at a temperature of 56 OC, what is the volume of the container that the
w
gas is in?

Answers

Answer: Thus the volume of the container that the gas is in 2311 L

Explanation:

According to ideal gas equation:

[tex]PV=nRT[/tex]

P = pressure of gas = 0.09 atm

V = Volume of gas = Volume of container = ?

n = number of moles = 7.7

R = gas constant =[tex]0.0821Latm/Kmol[/tex]

T =temperature =[tex]56^0C=(56+273)K=329K[/tex]

[tex]V=\frac{nRT}{P}[/tex]

[tex]V=\frac{7.7mol\times 0.0821Latm/K mol\times 329K}{0.09atm}=2311L[/tex]

Thus the volume of the container that the gas is in 2311 L

Oxygen decays to form nitrogen.
150
15N + ºe
This type of nuclear decay is called
DONE

Answers

Answer: beta plus decay

Explanation:

just did it on edge :)

Answer:

The answer is C) beta plus decay

Explanation:

I took the assignment, i hope it helps

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providing incentives for customers to learn more about your service is known as?A) branding B) advertising C) permission marketing D) search engine optimization You are dealt one card from a standard 52-card deck. Find the probability of being dealt a card greater than 2 and less than 5. The probability of being dealt a card greater than 2 and less than 5 is........ Can a single off spring inherit both chromosomes from one parent? explain. Is x+x+x+x=4x true or false Why would people react to a program like the great society with fear? Simplify the following expression 1^9 Which of the following BEST explains how matter and energy cycle through ecosystems? Read the excerpt from News Articles about Bullying. "Our presentations are like a pep rally," Robin Arnold said. "Bullying happens in every school, and we have found that most kids bully because they don't know any better." Which answer best demonstrates synthesizing the information from the excerpt? What is different about the rotation of Uranus? the axis is vertical the axis is pointing toward the sun there is no axis of rotation which compound has the stronger bonds Jayden is a new nurse at the hospital. Her supervisor sends her the following email: "Hi, Jayden. Please report: (1) the current status of all your patient's symptoms and (2) the results from the bloodwork tests you administered today." Is this email going to help Jayden complete her job well? A. Yes, because it is brief , but detailed. B. No, because it uses specific medical terms . C. No , because it is wordy and vague . D. Yes , because it puts all of Jayden's tasks in writing .?????? How could Tony have stopped Hannahs suuicide? In 13 reasons why book 1. Cultures that focus on individuality (such as the United States and WesternEurope) tend to haveanddisplays of emotion. In collectivist cultures (such as Asian cultures), however,emotions arewhen in the presence of others.Moreover, emotions such as, andare more common inEastern cultures than in Western cultures andare concealed. Jose played soccer for a team _______ lost every game it played.A. which itB. which C. that The domain of f(x) = 4x is The range of f(x) = 4x is 1% of 800 is......And 2% of 800 is.... Read this excerpt from I Never Had It Made.Thirty-five years later, while I was lying awake nights, frustrated, unable to see a future, Mr. Rickey, by now the president of the Dodgers, was also lying awake at night, trying to make up his mind about a new experiment.He had never forgotten the agony of that black athlete. When he became a front-office executive in St. Louis, he had fought, behind the scenes, against the custom that consigned black spectators to the Jim Crow section of the Sportsman's Park, later to become Busch Memorial Stadium. His pleas to change the rules were in vain. Those in power argued that if blacks were allowed a free choice of seating, white business would suffer.Which detail best supports the central idea that many people oppose Branch Rickeys ideas?"Mr. Rickey, by now the president of the Dodgers, was also lying awake at night, trying to make up his mind about a new experiment.""He had never forgotten the agony of that black athlete.""[H]e had fought, behind the scenes, against the custom that consigned black spectators to the Jim Crow section of the Sportsman's Park""Those in power argued that if blacks were allowed a free choice of seating, white business would suffer." 16) The cost, in dollars, of retaining the services of a computer repairman in Anchorville is given byy = 42x + 32, where x is the number of hours workedA) 32 signifies the hourly rate, and 42 signifies the overhead chargeB) 42 signifies the hourly rate, and 32 signifies the overhead chargeC) 74 signifies the cost for an on-site inspectionD) -42 signifies the hourly rate, and 32 signifies the travel cost Shannon bought 5 pounds of apples. Bill bought 2 pounds of apples. Which mostclosely estimates how many more pounds of apples Shannon bought than Bill? [Hamlet:] For in that sleep of death what dreams may come When we have shuffled off this mortal coil, Must give us pause. Theres the respect That makes calamity of so long life Hamlet,William ShakespeareWhich word in the passage does Hamlet use to describe life? Steam Workshop Downloader