Reaction Profiles

For all reactions, which letter represents the REACTANTS?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

For each reaction, which letter represents the PRODUCTS

• A

• B

• C

• D

For reactions W and X, the thermal energy of the products is ___________

• higher than that of the reactants

• lower than that of the reactants

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

The reactions W and X are both... (choose 2 correct answers)

• endothermic reactions

• exothermic reactions

• heat absorbing reactions

• heat releasing reactions

Tags

NGSS.HS-PS1-4

Exothermic reactions....

• Require heat

• Absorb heat

• Use heat

• Release heat

Tags

NGSS.HS-PS1-4

Endothermic reactions...

• Absorb heat

• Release heat

• Lose heat

• Give off heat

Tags

NGSS.HS-PS1-4

For reactions Y and Z, the thermal energy of the products.....

• is higher than that of the reactants

• is lower than that of the reactants

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Reactions Y and Z are both... (choose 2 correct answers)

• Endothermic reactions

• Exothermic reactions

• Heat absorbing reactions

• Heat releasing reactions

Tags

NGSS.HS-PS1-4

Which letter represents the activitation energy in each of the reactions?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-4

The mininum amount of energy a system needs to initiate a reaction is called.....

• the activation energy

• the de-activation energy

• the athletic energy

Tags

NGSS.HS-PS1-4