Answer:
6.53g of K₂SO₄
Explanation:
Formula of the compound is K₂SO₄
Given parameters:
Volume of K₂SO₄ = 250mL = 250 x 10⁻³L
= 0.25L
Concentration of K₂SO₄ = 0.15M or 0. 15mol/L
Unknown:
Mass of K₂SO₄ =?
Methods:
We use the mole concept to solve this kind of problem.
>>First, we find the number of moles using the expression below:
Number of moles= concentration x volume
Solving for number of moles:
Number of moles = 0.25 x 01.5
= 0.0375mole
>>Secondly, we use the number of moles to find the mass of K₂SO₄ needed. This can be obtained using the expression below:
Mass(g) = number of moles x molar mass
Solving:
To find the molar mass of K₂SO₄, we must know the atomic mass of each element in the compound. This can be obtained using the periodic table.
For:
K = 39g
S = 32g
O = 16g
Molar mass of K₂SO₄ = (39x2) + 32 + (16x4)
= 78 +32 + 64
= 174g/mol
Using the expression:
Mass(g) = number of moles x molar mass
Mass of K₂SO₄ = 0.0375 x 174 = 6.53g
Answer:
6.97 g
Explanation:
cK-12
16.9 Molarity
What is one similarity between the lungs and capillaries? (5 points) They are both activated by inhalation. They are both involved in gas exchanges. They are both part of the circulatory system. They are both regulated by the heart.
Answer:
They are both involved in gas exchanges.
Explanation:
This is the answer because:
1) Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
2) Also, capillaries are located inside the lungs. Therefore, whenever we breathe in air we exchange gasses.
Hope this helps! :D
One similarity between the lungs and capillaries is that they are both involved in gas exchanges.
What do you mean by Capillaries?Capillaries may be defined as a network of blood vessels that supplies blood as well as oxygen throughout the body.
Both the lungs and the capillaries are actively involved in the exchange of gases in and out of the body. The capillaries are connected to the walls of the alveoli where oxygen and carbon dioxide diffuse. Carbon dioxide is exhaled outside by the lungs, while the oxygen is attached to the RBCs and travels to the heart.
Therefore, one similarity between the lungs and capillaries is that they are both involved in gas exchanges.
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calculate the molarity of a solution if there are 1.5 mol of NaCl in 2.3 L of solution
Answer:
Molarity≅0.6522 mol/L
Explanation:
The solutions are homogeneous mixtures (that is, their properties and composition are uniform) of two or more substances. The substance that is in greater proportion is called solvent, and the substance or substances that are in a smaller proportion, solute.
The mole is an International Unit used to measure the amount of a substance.
Molarity (M) or Molar Concentration is the number of moles of solute that are dissolved in a given volume of solution. It is expressed in the units (moles / liter).
[tex]Molarity=\frac{number of moles of solute}{solution volume}[/tex]
In this case, the solute is NaCl,and you know:
number of moles of solute: 1.5 molsolution volume: 2.3 LThen:
[tex]Molarity=\frac{1.5 mol}{2.3 L}[/tex]
Molarity≅0.6522 mol/L
The molarity of a solution if there are 1.5 mol of NaCl in 2.3 L of solution is 0.652M
HOW TO CALCULATE MOLARITY:The molarity of a solution can be calculated by dividing the number of moles in the solution by its volume. That is;Molarity = no. of moles (n) ÷ volume (L)
According to this question, there are 1.5 moles of NaCl in 2.3L of solution. The molarity can be calculated as follows:Molarity = 1.5mol ÷ 2.3L
Molarity = 0.652M
Therefore, the molarity of a solution if there are 1.5 mol of NaCl in 2.3 L of solution is 0.652M.
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The natural source of acidity in rain water is _____.
carbonic acid
sulfuric acid
nitric acid
all of the above
Answer:
carbonic acid
Explanation:
Carbonic acid refers to the natural existent acid in our atmosphere which is produced when water reacts with water vapor and it makes rain naturally acid. As a result, rainwater is always acidic. On the other hand, acid rain occurs when precipitation contains a higher than normal acidity and a pH lower than 5.0.
Answer:
Carbonic acid
Explanation:
Hello,
In this case, due to the increasing concentration of carbon dioxide in the atmosphere, when it rains, the following chemical reaction occurs between water and carbon dioxide:
[tex]CO_2+H_2O\rightarrow H_2CO_3[/tex]
Whose product is known as carbonic acid and it is the natural source of acidity in acid rain.
Regards.
Given 6193 mL of a gas at 62.3 °C. What is its volume at 38.1 °C?
Answer:
5746.0 mL.
Explanation:
We can use the general law of ideal gas: PV = nRT.
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
If n and P are constant, and have two different values of V and T:
V₁T₂ = V₂T₁
V₁ = 6193.0 mL, T₁ = 62.3°C + 273 = 335.3 K.
V₂ = ??? mL, T₂ = 38.1°C + 273 = 311.1 K.
∴ V₂ = V₁T₂/T₁ = (6193.0 mL)(311.1 K)/(335.3 K) = 5746.0 mL.
if mars is located an average of 228 million km from earth, and radio waves travel at 300,000 km/s, how many minutes does it take a communication to reach earth from mars ?
It takes approximately 12.67 minutes for a communication to travel from Mars to Earth, calculated by dividing the average distance of 228 million km by the speed of light (300,000 km/s) and then converting the time from seconds to minutes.
Explanation:To calculate the time it takes for a communication to reach Earth from Mars, you can use the formula for the speed of light:
Time = Distance / Speed. With Mars being an average of 228 million km away from Earth and radio waves traveling at the speed of light, which is approximately 300,000 km/s, you can compute the time in seconds and then convert the result into minutes.
First, find the time in seconds:
Time = 228,000,000 km / 300,000 km/s = 760 seconds.
Then, convert seconds into minutes:
Time = 760 s / 60 s/min = 12.67 minutes.
Therefore, it takes approximately 12.67 minutes for a communication to reach Earth from Mars.
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Calculate the mass percent of calcium chloride in 8.87 g of calcium chloride in 65.1 g of water
Answer:
11.99 % ≅ 12.0%.
Explanation:
∵ mass % = [mass of solute/mass of solution] x 100.
mass of solute (CaCl₂) = 8.87 g & mass of solution = 8.87 g + 65.1 g = 73.97 g.
∴ mass % of (CaCl₂) = [mass of solute/mass of solution] x 100 = ( 8.87 g/ 73.97 g) x 100 = 11.99 % ≅ 12.0%.
does cm² mean with the power of two?
yup it's correct because we multiply cm by cm twice
Yes, "cm²" does indeed represent square centimeters, and it indicates an area measurement in the metric system.
The "cm" stands for centimeters, which is a unit of length, and the "²" denotes the square, signifying the second power or exponent of the unit. In mathematical terms, when you square a unit of length (in this case, centimeters), you are calculating the area.
For example, if you have a square with sides each measuring 5 centimeters, the area would be expressed as:
5 cm [tex]\times[/tex] 5 cm = [tex]5^2 \, \text{cm}^2\)[/tex] = 25 [tex]cm^2[/tex]
This concept extends to any shape or object where you need to measure the surface or coverage in two dimensions. The square unit (²) implies the measurement is being squared, representing an area rather than a linear measurement.
Hydrogen bonds between adenine & thymine or guanine and cytosine form ______ _______ that join the two strands of the DNA double helix. What is the blank? (Hint: the third letter of the first word is an S & both words combined can only be 9 letters) Please help! I have no idea :(
Base pairs.
Four + Five = Nine
The third letter in base is S.
IT ADDS UP.
In DNA, hydrogen bonds form base pairs between adenine and thymine or guanine and cytosine, which stabilize the double helix structure.
Explanation:The hydrogen bonds between adenine (A) and thymine (T) or guanine (G) and cytosine (C) form base pairs that join the two strands of the DNA double helix. In DNA, adenine forms a base pair with thymine and guanine forms a base pair with cytosine. These base pairs are fundamental in the structure of the DNA double helix. The arrangement was suggested by Chargaff's Rules and is consistent with Watson and Crick's proposed model of DNA. Two hydrogen bonds form in an A-T base pair and three in a G-C base pair, maintaining the stability of the DNA structure.
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In this illustration, the rings around the Sun represent
A)
orbits.
B)
sun rays.
C)
radiation.
D)
dust particles.
Answer:
Ok so its not dust particles i have proof i choose it and it was wrong but i have been working and the answer is sun rays i looked at images online and i found the same image so its sun rays i hope this helps.
In this illustration, the rings around the Sun represent sun rays. Sunlight, or radiation from the Sun, is a bundle of electromagnetic waves that range from infrared (IR) to ultraviolet rays (UV)
What are sun rays?Crepuscular rays are produced when sunlight passes through gaps in clouds and continues into an environment that contains dust and/or haze. They are also known as sun rays and sunbeams.
Sunlight, specifically infrared, visible, and ultraviolet light, is a type of electromagnetic radiation emitted by the Sun.
On Earth, sunlight is reflected and filtered by the atmosphere, and when the Sun is above the horizon, it is seen as daytime.
Sunlight, or radiation from the Sun, is a bundle of electromagnetic waves that range from infrared (IR) to ultraviolet rays (UV). The electromagnetic spectrum naturally includes visible light, which lies between IR and UV.
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how are half reactions combine to give overall redox reaction
Answer:
the oxidized substance will have electrons as products (i think)
Explanation:
The first step to balance any redox reaction is to separate the reaction into half-reactions. The substance being reduced will have electrons as reactants, and the oxidized substance will have electrons as products. (Usually all reactions are written as reduction reactions in half-reaction tables.
Half-reactions are used to form the overall redox reaction by first balancing them separately and then adding them together. This process, also known as the half-reaction method, provides a systematic way to balance and understand complex redox reactions.
Explanation:Half-reactions are combined to form the overall redox reaction by balancing them separately first, and then adding them together. The half-reaction method involves balancing the oxidation and reduction half-reactions separately and then combining them. The overall redox reaction is obtained through this process.
Let's take a simplified example:
Imagine a redox reaction with Fe²+ and Cr₂O7²-. The two half-reactions occurring here would be the oxidation of Fe²+ to Fe³+ (oxidation half-reaction), and the reduction of Cr₂O7²- to Cr³+ (reduction half-reaction).
These half-reactions are balanced separately, where we match the electron loss in the oxidation half-reaction with the electron gain in the reduction half-reaction. The balanced half-reactions are then added together to give the overall redox equation.
To summarize, the half-reaction method is a systematic approach that allows us to simplify and understand complex redox reactions by breaking them down into manageable pieces.
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3. The relationship between two optical isomers is most like the relationship between _____.
an open hand and a closed fist
a bare hand and a gloved hand
a man’s hand and a woman’s hand
a left hand and a right hand
PLEASE EXPLAIN WHY
Answer: option D
Explanation:
Since optical isomers are of 2 types called Enantiomers and Diastereomers
Enantiomers are non super impossible mirror images to each other. Examples, a man's right and left hand, Gloves
Diastereomers are non super impossible non mirror images
Which term names the main class of the chemical that makes up bread.
Answer:
yeast
Explanation:
which two body systems deliver oxygen to your cells and take away carbon dioxide
Body systems associated with gases(particularly that which was asked):
• Respiratory System.
• Cardiovascular System or Circulatory System or Vascular System.
Note: All these three are the names of the same thing i.e cardiovascular system, circulatory system and vascular system.
What is the balanced equation for Fe+O2—->Fe3O4
Answer:
3Fe2O2---> Fe3O4
Explanation:
You need to add three to the left side to make it equal to the one on the right, and add a 2 since you can't change the subscripts
Answer:
The balanced chemical reaction is:
[tex]3Fe+2O_2\rightarrow Fe_3O_4[/tex]
Explanation:
Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.
While balancing the chemical equation balance all the atoms of elements except oxygen atom which will be done in the last.
[tex]Fe+O_2\rightarrow Fe_3O_4[/tex]
Step 1: Write three in front of iron;
[tex]3Fe+O_2\rightarrow Fe_3O_4[/tex]
Step 2: Now write two in front of oxygen gas;
[tex]3Fe+2O_2\rightarrow Fe_3O_4[/tex]
The balanced chemical reaction is:
[tex]3Fe+2O_2\rightarrow Fe_3O_4[/tex]
According to reaction, 3 moles of iron reacts with 2 moles of oxygen gas to give 1 mole of ferric oxide.
In a solution with a pH of 4, the [OH-] is:
1x 10-10
1x 10-4
10
- 1x 10-8
For a solution with a pH of 4, the hydroxide ion concentration [OH-] is calculated by subtracting the pH from 14 to get the pOH, and then finding 10^-pOH, resulting in [OH-] = 1 x 10⁻¹⁰ M.
So, the correct answer is option 1) 1 x 10⁻¹⁰.
Explanation:The question resolves around finding the hydroxide ion concentration ([OH-]) in a solution with a specific pH. To calculate the [OH-] for a solution with a pH of 4, we use the relationship where the sum of the pH and pOH equals 14. First, we find the pOH by subtracting the given pH from 14:
pOH = 14 - pH = 14 - 4 = 10.
Then, we use the pOH to determine the hydroxide ion concentration:
[OH-] = 10^-pOH[OH-] = 10⁻¹⁰The [OH-] in a solution with a pH of 4 is therefore 1 x 10⁻¹⁰ M.
So, the correct answer is option 1) 1 x 10⁻¹⁰.
Need help will
Give 55 points
D, L, A, L,?, j, b, ,, ,, ,,
Answer: um nose
Explanation:
The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and dense, have few moons, no rings, and are relatively small. These planets also differ in many ways, as shown in the chart. For example, Venus is the hottest planet on the chart, even though Mercury is closer to the Sun. The temperature difference between Venus and Earth is significantly greater than the difference between Venus and Mercury, even though Venus lies close to midway between those two planets. Which statement elaborates on the cause of this wide range of temperatures between terrestrial planets? 45 POINTS!!!
A) The dense atmosphere of Venus traps the Sun's heat, known as the greenhouse effect, resulting in high temperatures.
B) The farther away from the Sun, the thinner a planet's atmosphere. Closer planets need more protection from the heat.
C) The temperature of Mars is so low because its atmosphere is mostly made of carbon dioxide, which does not trap heat well.
D) Venus is more than twice as large as Mercury, so it absorbs more of the Sun's heat, even though Mercury is closer to the Sun.
Answer:
B) The farther away from the Sun, the thinner a planet's atmosphere. Closer planets need more protection from the heat.
Explanation:
The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and dense, have few moons, no rings, and are relatively small. These planets also differ in many ways, as shown in the chart. For example, Venus is the hottest planet on the chart, even though Mercury is closer to the Sun. The temperature difference between Venus and Earth is significantly greater than the difference between Venus and Mercury, even though Venus lies close to midway between those two planets.
Answer:
[tex]\Huge \boxed{\mathrm{A}}[/tex]
Explanation:
The terrestrial planets are the planets closest to the Sun.
Venus is the hottest planet, the temperature on Venus is higher than the temperature on Mercury and Earth.
Venus has a thick dense atmosphere, composed of primarily carbon dioxide and clouds of sulfuric acid, that traps the Sun’s heat, resulting in high temperatures. The atmosphere of Venus is more denser than the atmosphere of Mercury and Earth.
The functional group for a carboxylic acid is
Answer: -COOH
Explanation: In general, carboxylic acids are represented by the formula RCOOH, where R is a hydrocarbon group and COOH is the fuctional group.
-
-
The functional group for a carboxylic acid is -COOH.
What is a carboxylic acid?An organic acid containing a carboxyl group. The simplest examples are methanoic (or formic) acid and ethanoic (or acetic) acid.
Organic acids such as acetic acid all contain a functional group called a carboxyl group. The carboxyl group contains the C=O. of the carbonyl group, with the carbon atom also being bonded to a hydroxyl (−OH) group. The simplest carboxylic acid is acetic acid [tex](CH_3COOH)[/tex]
Hence, the functional group for a carboxylic acid is -COOH.
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What is the percent by mass of oxygen in carbon dioxide (CO2)?
Use
%ELEMENT=TOTAL MASS OF ELEMENT IN COMPOUND/MOLAR MASS OF COMPOUND -X100
27.29%
57.12%
72.71%
79.99%
Answer:
= 72.73%
Explanation:
The percentage by mass of an element is given by;
% element = total mass of element in compounds/molar mass of compound × 100
The mass of oxygen in carbon dioxide = 32 g
Molar mass of CO2 = 44 g
Therefore;
% of O2 = 32/44 × 100%
= 72.73%
Answer:
C
Explanation:
72.71%
How many miles of NaCl are in 250 mL of a 0.4 M solution?
Answer:
There are 0.1 moles of solute in 250 mL of 0.4 M solution.
Explanation:
First, recognize that the molar concentration tells you how many moles of the solute are present in one liter of solution. In a 0.4 M solution, there are 0.4 moles of solute in every liter of solution. You can determine the number of moles of solute in 250 mL of the solution using dimensional analysis.
250 ml . 1L/1000 L . 0.4mol / 1L
Units of liters and milliliters cancel, leaving you with a final answer in units of moles, at 0.1 mol.
Which is a postulate of the kinetic-molecular theory?
Answer:
Gas particles have a small volume relative to the spaces between them.
Explanation:
The study of chemicals and bonds is called chemistry. There are different types of elements and these are metals and nonmetals.
What is kinetic energy?The energy formed by the motion of particles is called kinetic energy.
According to the question, the postulates are as follows:-
The particles in a gas are in constant, random motion.The combined volume of the particles is negligible.The particles exert no forces on one anotherAny collisions between the particles are completely elastic.The average kinetic energy of the particles is proportional to the temperature in kelvins.For more information about kinetic energy, refer to the link:-
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A scientist is sitting in her living room and hears the wind rushing past her front door.
Based on her knowledge of Bernoulli's principle, what does the scientist know even without opening the door?
The air outside has less volume than the air inside.
There is less air pressure outside the door than inside the door.
The air outside has more mass than the air inside.
There is more air pressure outside the door than inside the door.
I think the second choice but I might be wrong
Answer:
B
Explanation:
There is less air pressure outside the door than inside the door.
In ionic bonds what happens to electrons
A: nonmetals donate electrons to metals
B: nonmetals share electrons
C: metals donate electrons to non metals
Answer:
C: metals donate electrons to non metals
Explanation:
Answer : The correct option is, (C) metals donate electrons to non metals
Explanation :
Covalent compound : Covalent compounds are the compound in which the atoms are covalently bonded. The covalent bonds are formed by the equal sharing of the electrons and these bonds are formed between two non-metals.
Ionic compound : Ionic compounds are the compound in which atoms are bonded through the ionic bond. The ionic bonds are formed by the complete transfer of electrons. That means the bond is formed when the metals donate electrons to the non-metals.
These bonds are formed between one metal and one non-metal.
Hence, the correct option is, (C) metals donate electrons to non metals
help please
Isabella was standing directly below a power line, and her compass failed to give an accurate reading.
How could she explain why her compass was not working?
A
A compass works with a magnetic field, and the electric current running through the lines above it would interfere with the magnetic field.
B
The compass works because of an electric field, and the electric current running through the lines above would interfere with the electric field.
C
The compass works because of a gravitational field, and the magnetic current running through the lines above would interfere with the gravitational field.
D
A compass works because of a magnetic field, and the magnetic current running through the power lines above it would interfere with the magnetic field below it.
a compass works with magnetic field the answer is d
PLEASE for the love of god answer these questions for me!!!! It’s urgent.
1. Some igneous rock forms from magma that cools slowly within Earth’s crust. Briefly describe the most likely crystallization and texture of the rock.
2. Other igneous rock forms from lava that cools quickly on Earth’s surface. Classify the rock as either intrusive or extrusive, and identify another word used to describe this type of rock.
3. You are studying a sample of igneous rock. The rock formed on the surface of Earth. It’s made mostly of light-colored minerals. The sample has just a few specks of dark-colored minerals. Classify the rock by type and composition.
4. You are studying a sample of igneous rock. The rock formed within Earth’s crust. The sample contains a very high concentration of dark-colored, high-density minerals. Classify the rock by type and composition.
5. A scientist shows you a sample of rock called gabbro. The scientist explains that gabbro is an intrusive mafic igneous rock. Explain what this means.
Igneous rocks that cool slowly inside the Earth's crust have coarse-grained textures. Rocks that cool quickly on the Earth's surface are called extrusive or volcanic. Extrusive rocks with primarily light-colored minerals are felsic, likely rhyolite, while intrusive rocks with dark, high-density minerals are mafic, possibly gabbro.
Explanation:1. When magma cools slowly within the Earth’s crust, it gives the crystals in the forming igneous rock time to grow, creating a coarse-grained texture often visible to the nake-d eye. This is known as phaneritic texture.
2. The rock that forms from lava cooling quickly on the Earth's surface would be classified as extrusive. Another term used to describe this type of igneous rock is volcanic.
3. The rock sample described is likely an extrusive igneous rock of felsic composition, possibly a rhyolite. This type of rock is primarily composed of light-colored minerals with few dark-colored minerals present.
4. The rock described is likely an intrusive igneous rock with a mafic composition. This might be a gabbro, which typically contains a high concentration of dark-colored, high-density minerals.
5. If gabbro is classified as an intrusive mafic igneous rock, it means that it was formed by magma cooling slowly within the Earth's crust (intrusive) and it is composed primarily of dark colored, high-density minerals (mafic).
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Igneous rocks are classified as intrusive or extrusive based on whether they cool slowly within Earth's crust or quickly on the surface, resulting in coarse-grained or fine-grained textures, respectively. A light-colored, surface-formed rock is likely extrusive and felsic, while a dark-colored, crust-formed rock is likely intrusive and mafic. Gabbro is an intrusive mafic igneous rock, meaning it has a coarse-grained texture and is composed of dark, dense minerals.
Explanation:Igneous rocks are classified into two main types based on their formation process and resultant textures: intrusive (or plutonic) and extrusive (or volcanic).
1. When igneous rock forms from magma that cools slowly within Earth's crust, it is likely to have a coarse-grained texture due to the slow crystallization process that allows larger mineral crystals to form. This type of igneous rock is referred to as intrusive or plutonic.
2. Igneous rock that forms from lava cooling quickly on Earth's surface is classified as extrusive. This type of rock is also known as volcanic igneous rock, and it typically has a fine-grained texture due to the rapid cooling that allows only small crystals to form.
3. An igneous rock sample that formed on the surface of Earth and is composed mostly of light-colored minerals is likely an extrusive rock with a felsic composition, which means it is rich in silica. Common examples of this type include rhyolite or dacite.
4. An igneous rock that formed within Earth's crust and contains a high concentration of dark-colored, high-density minerals is likely an intrusive rock with a mafic composition, which means it is rich in magnesium and iron. This would typically correspond to a rock like gabbro.
5. Gabbro being an intrusive mafic igneous rock means that it formed within the crust from slowly cooled magma, and it is composed primarily of dark minerals like pyroxene and olivine, which are higher in density compared to the minerals that compose felsic rocks.
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A sample of helium gas in a balloon is compressed from 4.0 L to 3.2 L at a constant temperature. If the pressure of the gas in the 4.0 L volume is 229 kPa, what will the new pressure?
Answer:
286 kPa
Explanation:
Boyles law states that volume of gas is inversely proportional to pressure o gas for a fixed amount of gas at constant temperature
P1V1 = P2V2
where P1 is pressure and V1 is volume at first instance
P2 is pressure and V2 is volume at the second instance
substituting the values in the equation
229 kPa x 4.0 L = P2 x 3.2 L
P2 = 286.25 kPa
the new pressure is 286 kPa
Gregor Mendel used pea plants that were heterozygous for each of two traits
Answer:
Explanation:
C
How much does the density of water decrease when it is in a frozen state?
The density of water is decreases by about 9% when it is in a frozen state.
Water expands when it freezes because of the unique structure of the water molecule. Water molecules are polar, meaning that they have a positive and negative end. The positive end of one water molecule is attracted to the negative end of another water molecule, forming hydrogen bonds.
When water is in a liquid state, the hydrogen bonds are constantly breaking and reforming. This allows the water molecules to move around freely. However, when water freezes, the hydrogen bonds become more rigid and the water molecules form a crystalline structure. This structure is less dense than the liquid state, which is why ice expands when it freezes.
The hydrogen bonds in ice force the water molecules to be further apart than they are in liquid water. This is because the hydrogen bonds have a specific angle and length that they must be in order to be stable. As a result, the water molecules cannot pack as tightly together in ice as they can in liquid water.
The expansion of water when it freezes has a number of important implications. For example, it allows ice to float on water, which is essential for life in cold climates. It also helps to protect plants and animals from freezing damage.
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How is an organism related to a population?
A population is all the organisms of a single species in a given area
Answer:
Explanation:
A population is a group of organisms of the same type. A population is a group of members that belong to the same species.
Therefore, an organism is a part of a population.
What is the balanced equation for Al+FeN2>AlN+Fe
Answer:2 AL + FEN2 = 2 ALN + FE
Explanation: AL might be an improperly capitalized: Al. One of your compounds is AL (A and L). Did you mean Al (aluminum)?
FEN2 might be an improperly capitalized: FeN2. ALN might be an improperly capitalized: AlN
FE might be an improperly capitalized: Fe