Quiz about Amplify Chemical Reactions

Question 1

Damian mixed two samples together shown above and found two products, only one is shown above. Which of the following could be the two samples he mixed together?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 2

Marisol mixed two samples together shown above and found two products, only one is shown above. Which of the following could be the two samples he mixed together?

Accepted Answer

A) Sample 1

Answer

B) Sample 2

Answer

C) Sample 3

Answer

D) Sample 4

Question 3

A chemist mixed two samples together with properties shown above. One of the ending substances was a pink liquid. This ending substance is made up of the repeating group of atoms shown. Which of the following could be the samples for the reactants?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 4

Serena mixed 2 samples. She analyzed the results and found two ending substances. One of the ending substances was a white solid. Which of the diagrams shows the repeating groups of atoms that make up the samples Serena mixed together?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 5

Based on the diagram, what is the function of anhydrous calcium chloride in the experiment?

Accepted Answer

To absorb water vapour so that dry hydrogen will be produced

Answer

To supply hydrogen gas

Answer

To separate the metals

Answer

To release heat for combustion

Question 6

The substances at the beginning of a chemical equation are called the ____

Accepted Answer

reactants

Answer

products

Answer

yield

Answer

chemical equation

Question 7

Tiahna mixed two solid substances together in a sealed container. After mixing, Tiana found two liquid substances in the sealed container. (Nothing had escaped.) Which of the repeating groups of atoms could make up the ending substances?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 8

Santiago mixed two powdery substances together. After mixing, Santiago found two liquid substances in the sealed container. Which of the following could be the two product substances?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 9

Jamie mixed two gas substances together. After mixing, Jamie found two liquid substances in the sealed container. Which of the following could be the two product substances?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 10

What are Chemical Reactions?

Accepted Answer

A process in which atoms rearrange to form new substances.

Answer

It's when you mix substances.

Answer

When something bubbles.

Answer

Letter and numbers showing the types and number of atoms.

Question 11

Patrik mixed two colorless substances together in a sealed container. After mixing, Patrik found two white substances in the sealed container. Which of the following could make up the ending substances?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 12

A scientist mixed two samples together. She analyzed the results and found two ending substances. One of the ending substances is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the scientist mixed together?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 13

The diagram above shows the repeating groups of atoms that make up the two starting substances.

After mixing, the workers found two substances that melt at higher temperatures in the sealed container. (Nothing had escaped.)

Which of the diagrams shows the repeating groups of atoms that make up the ending substances?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 14

Andres is a chemist, he mixed two liquid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.

After mixing, Andres found two solid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 15

Jacob mixed two samples together: a colorless gas with no smell and a colorless liquid that smells like bleach. He analyzed the results and found two ending substances. One of the ending substances was a green gas. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Jacob mixed together?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 16

Paula works at a paint company and is developing new ingredients to make paint safer to use. She mixed two colorless substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.

After mixing, Paula found two yellow substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 17

What is the role of a catalyst in a chemical reaction?

Accepted Answer

C) It speeds up the reaction without being consumed.

Answer

A) It slows down the reaction.

Answer

B) It increases the activation energy required.

Answer

D) It changes the products of the reaction.

Question 18

Which of the following is an example of a catalyst in a chemical reaction?

Accepted Answer

B) Enzymes in biological processes

Answer

A) Water in a hydration reaction

Answer

C) Salt in a precipitation reaction

Answer

D) Sugar in fermentation

Question 19

In the reaction @@ ext{2H}_2 + ext{O}_2 ightarrow ext{2H}_2 ext{O}@@, what would happen if a catalyst is added?

Accepted Answer

B) The reaction would occur faster.

Answer

A) The reaction would produce more water.

Answer

C) The reaction would require more energy.

Answer

D) The reaction would stop.

Question 20

How does temperature affect the rate of a chemical reaction?

Accepted Answer

B) Increasing temperature generally increases the reaction rate.

Answer

A) Increasing temperature generally decreases the reaction rate.

Answer

C) Temperature has no effect on reaction rate.

Answer

D) Temperature changes the products of the reaction.

Question 21

What is the effect of increasing the concentration of reactants on the rate of a chemical reaction?

Accepted Answer

B) It increases the reaction rate.

Answer

A) It decreases the reaction rate.

Answer

C) It has no effect on the reaction rate.

Answer

D) It changes the products of the reaction.

Question 22

Which of the following statements is true about enzymes?

Accepted Answer

B) Enzymes decrease the activation energy of reactions.

Answer

A) Enzymes are consumed in the reactions they catalyze.

Answer

C) Enzymes increase the activation energy of reactions.

Answer

D) Enzymes change the equilibrium position of reactions.

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