Question

question 22
please match the key word to the correct definition.
column a

1. chemical reaction
2. endothermic reaction
3. exothermic reaction
4. photosynthesis
5. product
6. reactant
7. respiration

column b
a. element or compound produced by a chemical reaction
b. a process that transforms two different sets of chemicals into a new set of chemicals when they come in contact with one another
c. process used by plants and other autotrophs to capture light energy and use it to power chemical reactions
d. element or compound that enters into a chemical reaction
e. a chemical reaction that requires an input of energy
f. a chemical reaction that releases energy
g. process used by organisms to break down high energy carbohydrates to generate energy that can be easily used to power reactions in cells

Explanation:

1. A chemical reaction is a process that transforms two different sets of chemicals into a new set when they come in contact, so Chemical reaction matches b.
2. An endothermic reaction requires an input of energy, so Endothermic reaction matches e.
3. An exothermic reaction releases energy, so Exothermic reaction matches f.
4. Photosynthesis is the process used by plants and other autotrophs to capture light energy and power chemical reactions, so Photosynthesis matches c.
5. A product is an element or compound produced by a chemical reaction, so Product matches a.
6. A reactant is an element or compound that enters into a chemical reaction, so Reactant matches d.
7. Respiration is the process used by organisms to break down high - energy carbohydrates to generate energy for cell reactions, so Respiration matches g.

Answer:

1. b
2. e
3. f
4. c
5. a
6. d
7. g