Chemistry Review #3

Which letter represents the energy of the reactants?

• A

• B

• C

Tags

NGSS.HS-PS1-4

Which letter represents the activation energy of the reaction?

• A

• B

• C

Tags

NGSS.HS-PS1-4

Which letter represents the energy of the products in the reaction?

• A

• B

• C

Tags

NGSS.HS-PS1-4

In this diagram, more energy is needed to make the products than what exists with the reactants. It is...

• an endothermic reaction

• an exothermic reaction

Tags

NGSS.HS-PS1-4

In this reaction, less energy exists in the products than what was needed to break the reactants. It is...

• an endothermic reaction

• an exothermic reaction

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

In this image, energy is being released from the system to the surroundings it is...

• an endothermic reaction/process.

• an exothermic reaction/process

Tags

NGSS.HS-PS1-4

In this image, energy is being absorbed from the surroundings into the system. It is...

• an endothermic reaction/process.

• an exothermic reaction/process.

Tags

NGSS.HS-PS1-4

If you cook something on a stove and in a pan. The thing that is being cooked is experiencing an

• endothermic reaction/process

• exothermic reaction/process

Tags

NGSS.HS-PS1-4

When a chemical is added to water and a temperature decrease is seen/felt, it is an

• endothermic reaction/process

• exothermic reaction/process

Tags

NGSS.HS-PS1-4

When these are snapped with a little activation energy, an_____________ begins.

• endothermic reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4