Question 29
Rates of ReactionPowdered marble reacts faster with hydrochloric acid solution than the granular form because the powdered form has
- A.more molecules
- B.more atoms
- C.larger surface area
- D.relatively large mass
Show the answer and explanation
Answer: C (larger surface area)
Explanation
Powder exposes much more surface to the acid, so more particles collide per second and the reaction is faster.