GCSE Edexcel Chemistry Calculating Rates of Reactions: Marble chips react with hydrochl

Question

Marble chips react with hydrochloric acid to produce carbon dioxide.

The equation for the reaction is

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

Which one of these changes would decrease the rate of this reaction?

Put a cross (✗) in the box next to your answer.

☐ A use hydrochloric acid which is more dilute

☐ B use smaller sized marble chips

☐ C use marble chips which have a larger surface area

☐ D use a larger volume of the hydrochloric acid

Marble chips react with hydrochloric acid to produce carbon dioxide - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1