A man weighing 48 newtons climbs a 2.0-meter ladder. How much work is done? 0.0 J 24 J 96 J 124 J

Answer:

- 0.028 °C

Explanation:

Where, ΔTf is the depression in water freezing point (ΔTf = ???°C).

Kf is the molal freezing point depression constant of the solvent (Kf = 1.86 °C/m).

m is the molality of AlCl₃ (m = 0.015 m).

∴ ΔTf = Kf.m = (1.86 °C/m)(0.015 m) = 0.0279 °C ≅ 0.028 °C.

∵ ΔTf = freezing point of pure water - freezing point of the solution in presence of AlCl₃.

∴  freezing point of the solution in presence of AlCl₃ = freezing point of pure water - ΔTf = 0.0 °C - 0.028 °C = - 0.028 °C.

The idea that atoms are unstable would have been strengthened because the orbiting electron would lose energy and fall into the nucleus.

Answer:

The idea that atoms are unstable would have been strengthened because the orbiting electron would lose energy and fall into the nucleus.

Explanation:

Based on classical mechanics an electron would spiral and fall on the nucleus thus collapsing the atom. But it was quantum mechanics that proposed that electrons move in definite orbits around the nucleus. Electrons absorb a definite quantum of energy and move from a lower state to an excited state. Also electrons release a definite quantum of energy and move from excited to more stable state.

I would say the answer is D

Paint samples received by forensic laboratories are usually in the form of small chips or smears. Infrared (IR) spectroscopy is one of the most commonly used tools available for the analysis of these types of samples and serves as a staple comparative technique in the assessment of whether or not a questioned sample could have come from a suspected object

The most direct way to probe the vibrational frequencies of a molecule is through infrared spectroscopy. This is because vibrational transitions typically require an amount of energy that corresponds to the infrared region of the spectrum. Raman spectroscopy, which typically uses visible light, can also be used to directly measure vibration frequencies.

Answer:

d) Infrared absorption

Explanation:

Spectroscopy involves the study of the interaction of electromagnetic radiation with matter.  The electromagnetic spectrum is essentially a composite of photons of different wavelengths and frequencies; from the low wavelength gamma rays to the high wavelength radio waves.

The pigments in a painting are organic compounds which can be easily identified via Infrared spectroscopy. When a beam of infrared light (photons in the 700 nm-1000 nm of the electromagnetic spectrum) is passed through the painting, photons of particular wavelengths or energy which are in resonance with the molecular vibrations of the pigment molecules get absorbed whereas the rest of the IR radiation is reflected and directed onto a detector. A plot intensity of the reflected IR light vs wavelength corresponds to the IR spectrum which is unique to a particular chemical substance. Thus, various pigments in a painting that have IR active features can be identified by this method.

Answer:

Explanation:

Hydrogen bonding is a special type of intermolecular force due to dipole - dipole atraction.

In order to the hydrogen bonding can be formed, the hydrogen atom in a molecule must be covalently bonded to an atom of oxygen (O), nitrogen (N), or fluor (F).

The most common example of hydrogen bonding is that of water molecules (H₂0).

Due to the relatively high electronegativity difference between hydrogen (H) and oxygen (O) atoms, each H will bear a high partial positive charge (δ+) and each O will have a high partial negative charge (δ-). Thus, the negative end of each H₂O molecule will be attracted to the negative part of other (neighbor) H₂O  molecule. This attraction is the hydrogen bonding and is responsible for many important special properties of water.

Hydrogen bonding is the association between a weakly positive hydrogen atom already bonded to one electronegative atom and an atom of O, N or F on another molecule. It is a weak interaction that occurs due to the attraction between opposite partial charges.

The best description of hydrogen bonding is the association between a hydrogen atom which is somewhat positive because it is bonded to a small electronegative atom and an atom of O, N or F on another molecule. This occurs when a weakly positive hydrogen atom already bonded to one electronegative atom is attracted to another electronegative atom from another molecule. Hydrogen bonding is a weak interaction, but it plays a significant role in many chemical and biological processes.

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Answer:

14.68 moles of He

Explanation:

To do this, just remember Avogadro's Constant or Avogadro's number. This constant tells us how many units ( in this case atoms) there are in a mole of ANY type of substance.

Avogadro's constant is 6.022140857 × 10²³ units per mole.

Now that we know how many atoms there are in 1 mole, we can use this as our conversion factor.

8.84 x 10²⁴ atoms of He →  moles of He

[tex]8.84\times10^{24} atoms of He\times\dfrac{1moleofHe}{6.022140857\times10^{23}atomsofHe}=14.68molesofHe[/tex]

So the answer would be:

14.68 moles of He

Answer:

the dotted line showing the intermolecular attraction

Explanation:

Answer:

Answer:  

An article discussing mineral resources written by the United States Geological Survey.

A study describing clinical trials of a new medication in the Journal of Medicinal Chemistry.

Explanation:

A reliable source can be define as the source of information which can be used for the purpose of research. The reliable source should be thorough, well reasoned and must be supported by the evidences. It can be based on experimental trials and outcomes of the previous research. It can be proved by the authentic organization and institution.

The following are the examples of reliable sources:

An article discussing mineral resources written by the United States Geological Survey.: This is the authentic reliable source as the information is provided by recognized survey organization.

A study describing clinical trials of a new medication in the Journal of Medicinal Chemistry.: This is reliable source because the information is provided on the basis of the clinical trials the results of which will be reliable as in journals only the reliable information is presented.

Answer:

Explanation:

The influence of temperature in equilibrium reactions can be predicted from the heat (enthalpy) information.

This is the chemical reaction:

The information about the enthalpy of the reaction, ∆H = − 92.2 kJ,  indicates that energy (heat) has been released to the surroundings (the products of the forward reaction have less energy than the reactants), which is defined as an exothermic reaction.

Then, you can rewrite the equaition in the form:

This is, the heat can be seen as a product of the direct reaction (or a reactant of the reverse reaction).

Now, it is quite straight to apply  Le Chatelier's principle:

a) Decreasing temperature is equivalent to extract heat or having less heat on the left side.

b) Then, the equilibrium must shift in a way that this lack of heat is compensated. Then, the reaction will shift to the right to produce more heat.

As conclusion, you can tell that in exothermic reactions, a decrase in temperature will cause the equilibrium to shift to the right.

This shift, of course, means the production of more ammonia.

The other choices are discarded following this brief reasoning:

1. increase the velocity of the gas molecules: the average velocity of the particles increases when the average kinetic energy increases, and the average kinetic energy will decrease if the temperature decreases. So, this statement is false.

3. increase the kinetic energy of the gas molecules: no, the average kinetic energy is proportional to the temperature, then reducing the temperature decreasese the average kinetic energy.

4. produce less ammonia: it was shown that reducing the temperature will produce more ammonia.

5. have no effect: no, it does have effect, as shown.

In the Haber process of ammonia production, when the reaction temperature is decreased, more ammonia is produced due to the exothermic nature of the reaction following Le Chatelier's Principle. The velocity and kinetic energy of the gas molecules decrease. Real-world ammonia production also accounts for pressure and catalyst factors.

The reaction of nitrogen and hydrogen to form ammonia, otherwise known as the Haber process, is an exothermic process, meaning it releases heat. As per Le Chatelier's principle, lowering the temperature of an exothermic reaction at equilibrium favors the production of more products. Therefore, decreasing the temperature of the hydrogen and nitrogen reaction will produce more ammonia (option 2).

Simultaneously, as we decrease the temperature, the average kinetic energy of the gas molecules decreases and, hence, the speed of the gas molecules also decreases. Therefore, the statement that decreasing the temperature will increase the velocity of the gas molecules (option 1) and increase the kinetic energy of the gas molecules (option 3) are incorrect. The option that decreasing the temperature will have no effect (option 5) is also incorrect in this scenario.

In real-world applications, the production of ammonia via the Haber process is influenced by pressure and temperature changes, and also by the usage of a catalyst to overcome the reaction's slow rate at lower temperatures.

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c= 1.4 X [tex]10^-^4[/tex] is the composition and ph of an ideal buffer prepared from lactic acid ([tex]CH_3CHOHCO_2H[/tex]), where the hydrogen atom highlighted in boldface is the acidic hydrogen atom.

A buffer is a solution that can resist pH change upon the addition of an acidic or basic components.

Equilibrium equation

[tex]C_3H_6O_3[/tex] ⇄[tex]C_3H_5O_3^-[/tex] +[tex]H^+[/tex]

Assuming a degree of dissociation [tex]\alpha[/tex] =[tex]\frac{1}{10}[/tex]

And the initial concentration of [tex]C_3H_6O_3[/tex] =c

At equlibrium ;

Concentration of [tex]C_3H_6O_3[/tex] = [tex]c - c\alpha[/tex]

[tex]C_3H_5O_3^-[/tex] = [tex]c\alpha[/tex]

[[tex]H^+[/tex]] = [tex]c\alpha[/tex]

[tex]Ka =\frac{c\alpha X c\alpha }{c-c\alpha }[/tex]

[tex]\alpha[/tex] is very small so 1-[tex]\alpha[/tex] can be neglected and the equation is;

[tex]Ka = c\alpha X \alpha[/tex]

[H^+] = [tex]c\alpha[/tex] =[tex]\frac{k\alpha }{\alpha }[/tex]

pH = -log [[tex]H^+[/tex]]

pH = -log[tex]Ka[/tex] +log [tex]\alpha[/tex]

[tex]Ka[/tex] = 1.38 X [tex]10^{-4}[/tex]

[tex]\alpha[/tex] = [tex]\frac{1}{10}[/tex]

pH = 3.86 -1

pH =2.86

Composition ;

C=[tex]\frac{1}{\alpha }[/tex] X [tex][H^+][/tex]

[tex][H^+][/tex] =0.0014

c= 0.0014 X [tex]\frac{1}{10}[/tex]

c= 1.4 X [tex]10^-^4[/tex]

Hence, c= 1.4 X [tex]10^-^4[/tex] is the composition and ph of an ideal buffer prepared from lactic acid ([tex]CH_3CHOHCO_2H[/tex]), where the hydrogen atom highlighted in boldface is the acidic hydrogen atom.

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An ideal buffer composed of lactic acid involves a mixture of lactic acid and its conjugate base, usually in equal molar amounts. Using the Henderson-Hasselbalch equation, the resulting pH will be close to 3.86, which is the pKa value of lactic acid.

The composition and pH of an ideal buffer prepared from lactic acid (CH3CHOHCO2H), would involve a mixture of lactic acid and its conjugate base, sodium lactate (CH3CHOHCO2Na). By using the Henderson-Hasselbalch equation, pH = pKa + log([A-]/[HA]), where pKa is the negative logarithm of Ka and [A-]/[HA] represents the ratio of the concentration of the conjugate base to the acid, we can determine the pH. For an ideal buffer, the ratio should be close to 1:1 to maintain a pH close to the pKa of lactic acid.

As an example, assume a student has mixed an equal number of moles (not necessary for equal weights as molar masses differ) of lactic acid and sodium lactate. In this case, since the pKa of lactic acid is 3.86, the resulting buffer would ideally have a pH close to 3.86, given that the concentrations of lactic acid and sodium lactate are similar after mixing.

Answer:0.256 M

Explanation: Molarity (M)= (mass/molar mass)(1000/Volume in mL)

M= 12.5x1000/162.2x300=0.256 M

The molarity of the FeCl₃ solution, convert the mass of FeCl₃ to moles, convert the solution volume to liters, and then divide the moles by the volume. The molarity of the FeCl₃ solution is 0.257 M.

The molarity of a solution is calculated by dividing the number of moles of the solute by the volume of the solution in liters. First, we need to convert the mass of FeCl₃ to moles by using its molar mass. Once we have the moles, we can divide by the volume of the solution in liters to find the molarity.

Steps to Calculate Molarity:

Calculate the molar mass of FeCl₃: (55.845 g/mol Fe) + (3 times 35.453 g/mol Cl) = 162.204 g/mol.

Convert the mass of FeCl₃ to moles: 12.5 g \/ 162.204 g/mol = 0.07710 moles.

Convert the volume of the solution to liters: 300 mL = 0.300 L.

Divide the moles of solute by the volume of the solution in liters to find the molarity: 0.07710 moles \/ 0.300 L = 0.257 M.

Therefore, the molarity of the FeCl₃ solution is 0.257 M.

its c take the pressure away

The study of chemicals and bonds is called chemistry. There are different types of elements and these are metals and nonmetals.

The correct answer is option C which decreases the pressure over the liquid.

The mixing of solute in the solvent is called solubility.

Solubility of solute depends on these factors and these are:-

According to the question, solubility increases when the pressure in liquid decreases.

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Answer is hope this helps

Answer:

Cf

Explanation:

californium

Answer:

None of these

Explanation:

Using the dilution formula;

M1V1 = M2V2

where M1 is the initial concentration, V1 is the initial volume, M2 is the concentration attained while V2 is the new volume.

Therefore;

M2 = M1V1/V2

     = (400 mL × 0.5) / 200 mL

     = 1 M

Therefore, the resulting concentration is 1M

Thus, the correct answer is "none of these"

If 200 mL of water is evaporated from 400 mL of 0.5 M aqueous salt solution, the resulting concentration is 1.0 M.

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.

A 400 mL solution has a concentration of 0.5 M. After 200 mL of water evaporate, 200 mL of solution remain. We can calculate the final concentration using the following expression.

C1 . V1 = C2 . V2

C2 = C1 . V1 / V2

C2 = 0.5 M . 400 mL / 200 mL = 1.0 M

where,

If 200 mL of water is evaporated from 400 mL of 0.5 M aqueous salt solution, the resulting concentration is 1.0 M.

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Answer:

[tex]\boxed{\text{(D) 2 HCHO}_{2}}[/tex]

Explanation:

HCOOH + H₂O ⇌ H₃O⁺ + HCOO⁻

HCHO₂ is a weak acid. It dissociates only to a few percent, so there will be more HCHO₂ than H₃O⁺ present.

After H₂O, the most abundant species will be undissociated HCHO₂, so the answer will be either (B) or (D).

We can use an ICE table to organize the calculation of the pH.

                  HCOOH +H₂O ⇌ H₃O⁺ + HCOO⁻

I/mol·L⁻¹:        0.5                       0            0

C/mol·L⁻¹:       -x                        +x           +x

E/mol·L⁻¹:     0.5 - x                    x             x

[tex]K_{\text{a}} = \dfrac{\text{[H}_{3}\text{O}^{+}]\text{HCOO}^{-}]} {\text{[HCOOH]}} = 2 \times 10^{-4}\\\\\dfrac{x^{2}}{0.5-x} = 2 \times 10^{-4}[/tex]

Check for negligibility of x

[tex]\dfrac{ 0.5 }{2 \times 10^{-4}} = 2500 > 400.[/tex]

∴ x ≪ 0.5

[tex]\dfrac{x^{2}}{0.5} = 2 \times 10^{-4}[/tex]

x² = 0.5 × 2 × 10⁴ = 1 × 10⁻⁴

x = √(1 × 10⁻⁴) = 1 × 10⁻²

[H₃O⁺] = x mol·L⁻¹ = 1 × 10⁻² mol·L⁻¹

pH = -log[H₃O⁺] = -log(1 × 10⁻²) = 2

The correct answer is [tex]\boxed{\textbf{(D) 2 HCHO}_{2}}[/tex].

Answer:

Noble gases are the only type of element that are chemically inert, that is, they do not normally undergo chemical reactions with other elements under normal circumstances, this is because they are chemically stable. Their stability is as a result of the eight valence electrons that they have in their outermost shells.

Other elements usually try to attain the stability found in noble gases by undergoing chemical reactions and by forming different types of bonds with other elements. One of the chemical bonds that are usually formed is covalent bond. In simple covalent bond, two elements usually donate one electron each, the two electrons donated are then shared equally by the two of them in order to ensure that each one has eight electrons in its outermost shell.

Atoms achieve noble-gas electron configurations in single covalent bonds through the sharing of electrons between atoms.

Atoms achieve noble-gas electron configurations in single covalent bonds through the sharing of electrons between atoms.

In a covalent bond, electrons are shared between atoms, and generally, each atom contributes one or more electrons to the bond. The shared electrons are attracted by the nuclei of both atoms, resulting in a stable electron configuration.

For example, in a double covalent bond between two oxygen atoms (O=O), each oxygen atom contributes two electrons, resulting in a shared configuration that resembles the noble gas, neon.

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The answer is a. Melting

Answer:

C. rainy weather

Explanation:

Rainy weather or other precipitation occurs when moist (humid) air is cooled below its dew point.

Cold winters are part of the long term climate of an area.

These conditions might cause a rainy weather. Therefore, the correct option is option C among all the given options

Humidity refers to the quantity of air that contains water vapor. Water vapor, the gaseous component of water, is frequently invisible to the  eye. The humidity predicts the presence for precipitation, dew, and fog. Humidity is affected by the pressure as well as temperature of the system in issue.

When a corresponding quantity of vaporized water is present, cold air has a higher relative humidity than warm air. Another important variable is the dew point. More water vapor is necessary as the temperature rises until saturation is attained. The humidity in a local area is high and the temperature drops. These conditions might cause a rainy weather.

Therefore, the correct option is option C.

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In the periodic table, atomic radius decreases as we move left to right across a period. In period 3, this results in the elements Si, Mg, Na, and Al being ranked in decreasing atomic radius as follows: Na, Mg, Al, and Si.

The atomic radius of an element is generally defined as the total distance from the center of an atom's nucleus to its outermost shell of electrons. In the periodic table, the atomic radius tends to decrease as we move across a period from left to right, and it increases as we move down a group.

Considering the elements Si, Mg, Na, and Al, all these elements are located in the same period in the periodic table, period 3. Therefore, as we move across this period from left to right, the atomic radius should decrease.

And following this rule, the elements should rank in this order from largest to smallest atomic radius: Na > Mg > Al > Si.

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The elements Si, Mg, Na, Al in order from largest to smallest atomic radius would be Na, Mg, Al, Si. This is based on the general trend in the periodic table where atomic radius decreases as you move from left to right across a period and increases as you move down a group.

In the periodic table, atomic radius generally decreases as you move from left to right across a period and increases as you move down a group. So, considering this, Si, Mg, Na, Al are positioned in the periodic table as follows: Na (period 3, group 1), Mg (period 3, group 2), Al (period 3, group 13), and Si (period 3, group 14). Following the trend in the periodic table, the order from largest to smallest atomic radius would be Na, Mg, Al, Si.

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Answer:

Explanation:

For every hal-life time the amount of the radioisotope (fluorine-18) will be cut to half.

Part a.

Since the half-life of fluorine-18 is 110 min, ater this very time, half of the fluorine-18 is still alive, i.e 100. mg / 2 = 50.0 mg. ← answer

Part b.

Compute the time elapsed from 8:00 am, when the fluorine-18 is shipped, to 1:30 pm, when the sample arrives at teh radiology laboratory.

Compute the number of half-lives in 330 min:

Conclusion:

After one half-life of 110 minutes, 50mg of the 100mg of Fluorine-18 would remain. After the time interval of 5 hours and 30 minutes or 330 minutes, which constitutes three half-lives, the remaining active Fluorine-18 would be 12.5mg.

In the case of Fluorine-18, the half-life is 110 minutes. This essentially means that half of the original amount of the radioisotope will decay and become inactive in 110 minutes.

a. If 100mg of Fluorine-18 is shipped at 8:00 a.m., after 110 minutes (or 1 hour and 50 minutes), at 9:50 a.m., half of the original amount, 50mg, will still be active.

b. If 100mg of Fluorine-18 is shipped at 8:00 a.m., and it arrives at the radiology laboratory at 1:30 p.m., this is 5 hours and 30 minutes, or 330 minutes later. As the half-life is 110 minutes, this period encompasses three half-lives (330/110). Starting with 100mg, after one half-life it would be 50mg, after the next it would be halved to 25mg, and after the third it would be 12.5mg remaining active.

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Answer:The answer is D

Explanation:

The inner transition elements are those in the two long rows at the bottom of the Periodic Table.

The lanthanide series starts after Ba in Period 6, and the actinide series starts after Ra in Period 7.

Thus, we would predict their electron configurations to be of the form

However, the energy levels of the ns, (n-1)d, and (n-2)f orbitals are so close in energy that there are many exceptions to our predictions

For example, here are some electron configurations.

La = [Xe]6s²5d (not [Xe]6s²4f)

Ce = [Xe]6s²4f5d (not [Xe]6s²4f²)

Pr = [Xe]6s²4f³ (as predicted)

Thus, their valence electrons can be in both s and f (and sometimes d) sublevels.

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The answer should be d

Answer:

[tex]\boxed{\text{1.05 atm}}[/tex]

Explanation:

We can use the Ideal Gas Law to calculate the pressure.

pV = nRT   Divide both sides by V

 p = (nRT)/V

 p = (m/M)(RT/V) = (mRT)/(MV)

Data:

m = 100 g

R = 0.082 06 L·atm·K⁻¹mol⁻¹

T = 325 K

M = 253.81 g·mol⁻¹

V = 10 L

Calculations:

p = (100 × 0.082 06× 325)/(253.81 × 10)  = 1.05 atm

The pressure in the container is [tex]\boxed{\text{1.05 atm}}[/tex].

Answer:

1.05 x 10^-6

Explanation:

Lambda = c / f

f if frequency

c is intensity of light

lambda = 3 x 10^8  / 2.85 x 10^14

             = 1.05 x 10 ^-6

Answer:c

Explanation:

Answer

Light

Explanation:

The gamma emission is an electromagnetic radiation, this kind of radiation come from the light.  

In gamma ray emission, a gamma ray is photon of light. Given that light does not have mass or charge, the symbol we use to identify it is: 00γ. With two zeroes.

hope i helped

-lvr

Answer:

Option c = Lighting of matchstick

Explanation:

The lightning of match stick is combustion reaction.  The chemical potassium chlorate, glue, sulfur and starch is present on the tip of match stick. When the match stick catch the fire combustion process occur and heat is released.

Photosynthesis in plant:

It is the reaction in which plants used the carbon dioxide and water and convert it into sugar and oxygen in the presence of light.

6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂

Mixing of acid and base:

When an acid react with base it form the salt and  water. The reaction is also called neutralization reaction because both neutralize each other.

In neutralization reaction equal amount of acid and base react to neutralize each other and equal amount of water and salt are formed. When pH does not reach to 7 its means there is less amount of one of reactant which is not fully neutralize.

Reacting of sodium and chlorine

The reaction of sodium and chlorine is the formation of  ionic compound. It is formed by the complete transfer of electron from sodium to chlorine atom and form ionic bond. In this ionic compound sodium carry positive charge and chlorine carry negative charge there is attraction between these oppositely charged atoms.

Answer:

lighting of a match stick

Explanation:

They are referred to as the finger prints of the element because they show the particular properties of the elements which differentiates one element from other elements

The emission spectrum or emission spectra is characteristic for each element as it provides information which is unique to each element.

Emission spectrum is defined as a spectrum of a chemical compound or substance composed of frequencies of electromagnetic radiation. Radiations which are emitted while electron make transition from higher to lower energy level.

Energy of photon is equal to the difference between the two energy states . There are many possible electronic transitions in an atom and every transition has a specific wavelength.

Collection of different transitions with respect to different wavelengths makes up an emission spectrum.Emission spectrum of each element is unique and therefore spectroscopy is used to identify elements which are present in different substances.

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Answer:The biosphere is all life on our planet. ... The impact on climate is mainly due to the connection between the biosphere and the atmosphere. Processes such as photosynthesis and respiration naturally affect the concentrations of gases such as oxygen and carbon dioxide in the atmosphere.

Explanation:

In photosynthesis, plants constantly absorb and release atmospheric gases in a way that creates sugar for food. Carbon dioxide goes in the plant's cells; oxygen comes out. Without sunlight and plants, the Earth would become an inhospitable place unable to support air-breathing animals and people.

D. I hope you have a good morning

- Josie Annette

Answer:

Q35 (C); Q36 (B)

Explanation:

Li₃N + 2H₂ ⇌ 2LiNH₂ + 2LiH; ΔH° = -192 kJ·mol⁻¹

Q35. Reaction rate

The reaction is slow below because it has a high activation energy.

ΔH, ΔS, and ΔG determine the position of equilibrium and the spontaneity of the reaction, not its rate.

Q36. Maximizing amount of H₂

The reaction is exothermic. According to Le Châtelier's Principle, increasing the temperature will shift the position of equilibrium to the left and increase the amount of hydrogen.

Increasing the pressure will shift the position of equilibrium to the side with fewer moles of hydrogen.

Decreasing the pressure will shift the position of equilibrium to the side with more moles of hydrogen.

The correct answer is (B) increasing the temperature and decreasing the pressure .

Answer:

Explanation:

Nucleons are the particles that are in the nucleus of the atom, i.e. protons and neutrons.

So, the nucleon number is the number of protons and neutrons.

Other name for nucleon number is mass number, and it is represented by the letter A:

nucleon number = mass number = A = protons + neutrons.

Carbon-14 is the particular name, indicating the mass number, of the isotope of carbon with mass number 14.

So, the nucleon number of carbon-14 is indicated in its name, and it is 14.

The name carbon-14 identifies completely the isotope because, the atomic number of carbon is the same for every atom (isotope) of carbon:

Answer:

The higher the pH is, the more the hydroxide ion concentration increases and the more basic the solution becomes.

Explanation:

Answer:

B

Explanation: