When a chemical reaction happens, what happens to the amount of reactants, and what happens to the amount of products?(1 point)

Question

Responses

both stay the same
both stay the same

both increase
both increase

reactants increase and products decrease
reactants increase and products decrease

reactants decrease and products increase

Answer 1

reactants decrease and products increase

Answer 2

How can you measure the rate at which photosynthesis occurs?(1 point)
Responses

Measure the output of carbon dioxide since photosynthesis releases CO2.
Measure the output of carbon dioxide since photosynthesis releases CO2.

Measure the uptake of carbon dioxide since photosynthesis consumes CO2.
Measure the uptake of carbon dioxide since photosynthesis consumes CO2.

Answer 3

Measure the production of oxygen since photosynthesis releases oxygen.

Answer 4

Photosynthesis occurs during the day when light is at its peak to maximize food production. Some respiration also occurs, but photosynthesis is the dominant process.(1 point)
Responses

True
True

False

Answer 5

True

Answer 6

The energy of the reactants is lower than the energy of the products. So energy has to be put INTO this reaction for it to take place. Is this an example of endothermic or exothermic reactions?(2 points)
Responses

Endothermic
Endothermic

Exothermic
Exothermic
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Answer 7

Endothermic