Question

Gas syringe

bung
chips
25 cm of dilute
hydrochloric acid
Which channes slow down the rate of reaction?
Decrease the size of pieces of marble chips
Decrease surface area of marble chips
Inercase concentration of acid
Increase temperature of acid
​

Answer 1

Decrease surface area of marble chips.

Step-by-step explanation:

Because the reaction goes on the surface of marble chips, decreasing surface area of marble chips will decrease(slow down) the rate of the reaction.