CHEMISTRY HIGH SCHOOL

In a chemical reaction occurring in an open beaker, the reactants have a mass of 10.0 g and contain 1000 J of energy. The products in the beaker contain a mass of 5.0 g and 500 J of energy. Which best explains the difference in energy and mass as reactants are converted to products?

Answers

Answer 1
Answer: The reaction sure involves the formation of products in gas state and the generation of heat (exothermical reaction)
Answer 2
Answer:

Answer:

C. law of conservation

Explanation:

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Answers

I think it is e sorry if I’m wrong

Write this number showing three significant figures. Remember to round. 10,411

Answers

10,400 Is the answer

What happens when you compress a gas

Answers

Gases exhibit no shape andvolume because the particles can move freely from one other. Their collisionsare rare due to the distance between them. The kinetic energy of the moleculesis high because there is room for movement. And because the particles are faraway from each other, it can be compressed easily. When you compressed a gas,you are decreasing the distance between the particles. Bringing the particlescloser makes room for more interaction because repulsive forces dominate. The gasthen will turn into liquid.

Answer:

Density is increased

Explanation:

I took a test and that was the correct answer :)

How many grams of water will form if 10.54 g H2 react with 95.10 g O2?

Answers

The mass of water that will be produced if 10.54 g of H₂ react with 95.10 g of O₂ is 94.86 g

Balanced equation

2H₂ + O₂ —> 2H₂O

Molar mass of H₂ = 2 × 1 = 2 g/mol

Mass of H₂ from the balanced equation = 2 × 2 = 4 g

Molar mass of O₂ = 2 × 16 = 32 g/mol

Mass of O₂ from the balanced equation = 1 × 32 = 32 g

Molar mass of H₂O = (2×1) + 16 = 18 g/mol

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

SUMMARY

From the balanced equation above,

4 g of H₂ reacted with 32 g of O₂ to produce 36 g of H₂O

How to determine the limiting reactant

From the balanced equation above,

4 g of H₂ reacted with 32 g of O₂

Therefore,

10.54 g of H₂ will react with = (10.54 × 32) / 4 = 84.32 g of O₂

From the calculation made above, we can see that only 84.32 g out of 95.10 g of O₂ given, is needed to react completely with 10.54 g of H₂.

Therefore, H₂ is the limiting reactant.

How to determine the mass of water produced

From the balanced equation above,

4 g of H₂ reacted to produce 36 g of H₂O

Therefore,

10.54 g of H₂ will react to produce = (10.54 × 36) / 4 = 94.86 g of H₂O

Thus, 94.86 g of H₂O were obtained from the reaction.

Learn more about stoichiometry:

brainly.com/question/14735801

Adding hydrogen atoms to an unsaturated fatty acid will make it __________.a. more solid
b. have better 6 benefits in relationship to heart disease
c. increase its flavor
d. create a fatty acid

Answers

The answer is (a.) more solid

 

Adding hydrogen atoms to an unsaturated fatty acid will make it more solid. This process is called hydrogenation. In this process, hydrogen is added to an unsaturated fatty acid to make it more saturated and thereby more solid at a room temperature.
Adding hydrogen atoms to an unsaturated fatty acid will make it more solid.

One isotope of a metallic element has a mass number 65 and 35 neutrons in the nucleus. The cation derived from the isotope has 28 electrons. What is the charge of this cation?

Answers

Answer:

2+

Explanation:

The proton no. of this element is 65-35=30

Since there are 30 protons and 28 electrons, the net charge is 2+
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