QUIZ #17: Chemical Reactions (2/26/2025)

Last updated 12 months ago

12 questions

Instructions

Use your notes from class. Best of luck! 

Required

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QUIZ #17: Chemical Reactions (2/26/2025)

Last updated 12 months ago

12 questions

Instructions

Use your notes from class. Best of luck! 

Required

Question 1

Which of the following are signs that a chemical reaction has occurred? (Select all that apply)

Color change

Temperature change

Production of gas

Dissolving in water

Required

Question 2

What are the substances called that you start with in a chemical reaction?

Products

Reactants

Catalysts

Inhibitors

Required

Question 3

What kind of reaction absorbs heat from its surroundings?

Chemical reaction

Physical change

Exothermic reaction

Endothermic reaction

Required

Question 4

What do we call substances formed after a chemical reaction?

Products

Endothermic substances

Catalysts

Reactants

Required

Question 5

What type of reaction releases energy in the form of heat?

Exothermic reaction

Light reaction

Endothermic reaction

Chemical change

Required

Question 6

What type of reaction is photosynthesis?

Endothermic reaction that absorbs energy.

A physical change with no energy change.

A combustion reaction with fire.

Exothermic reaction that releases energy.

Required

Question 7

Which process releases energy as heat or light?

Chemical equilibrium process of plants.

Nuclear reaction in sunlight.

Exothermic reaction like fire.

Endothermic reaction like photosynthesis.

Required

Question 8

A

B

C

D

Required

Question 9

A

B

C

D

Required

Question 10

10.

What gases are produced when fuels burn?

Nitrogen gas

Oxygen gas

Water vapor

Carbon dioxide

Required

Question 11

11.

What is needed for combustion to occur?

Oxygen

Hydrogen gas

Fuel

Carbon dioxide

Required

Question 12

12.

What is a byproduct of burning fuels?

Soot

Heat

Light

Nitrogen

Question 1

Which of the following are signs that a chemical reaction has occurred? (Select all that apply)

Color change

Temperature change

Production of gas

Dissolving in water

Question 2

What are the substances called that you start with in a chemical reaction?

Products

Reactants

Catalysts

Inhibitors

Question 3

What kind of reaction absorbs heat from its surroundings?

Chemical reaction

Physical change

Exothermic reaction

Endothermic reaction

Question 4

What do we call substances formed after a chemical reaction?

Products

Endothermic substances

Catalysts

Reactants

Question 5

What type of reaction releases energy in the form of heat?

Exothermic reaction

Light reaction

Endothermic reaction

Chemical change

Question 6

What type of reaction is photosynthesis?

Endothermic reaction that absorbs energy.

A physical change with no energy change.

A combustion reaction with fire.

Exothermic reaction that releases energy.

Question 7

Which process releases energy as heat or light?

Chemical equilibrium process of plants.

Nuclear reaction in sunlight.

Exothermic reaction like fire.

Endothermic reaction like photosynthesis.

Question 8

A

B

C

D

Question 9

A

B

C

D

Question 10

10.

What gases are produced when fuels burn?

Nitrogen gas

Oxygen gas

Water vapor

Carbon dioxide

Question 11

11.

What is needed for combustion to occur?

Oxygen

Hydrogen gas

Fuel

Carbon dioxide

Question 12

12.

What is a byproduct of burning fuels?

Soot

Heat

Light

Nitrogen