Energy Transfer in Chemical Reactions 1

The rate of a reaction tells us how ____________ a chemical reaction happens

• strongly

• often

• quickly

• much

Tags

NGSS.HS-PS1-5

Which of the following affect the rate of a reaction? (more than one answer)

• taste

• concentration

• temperature

• particle size

Tags

NGSS.HS-PS1-5

What does a catalyst do?

• It raises the temperature

• It releases carbon dioxide

• It changes the rate of a chemical reaction

• It makes a reaction safe

Tags

NGSS.HS-PS1-5

What are the products in this reaction? (more than one answer)

• CH₄

• O₂

• CO₂

• H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When ice melts is it a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When something burns (combustion) is it a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the products when an acid reacts with a base? (more than one answer)

• salt

• carbon dioxide

• oxygen

• water