Marble chips react with hydrochloric acid to produce carbon dioxide - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1
Question 2
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 ... show full transcript
Worked Solution & Example Answer:Marble chips react with hydrochloric acid to produce carbon dioxide - Edexcel - GCSE Chemistry - Question 2 - 2014 - Paper 1
Step 1
A use hydrochloric acid which is more dilute
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Answer
Using more dilute hydrochloric acid reduces the concentration of reactants, leading to fewer effective particle collisions per unit time. This directly results in a decrease in the rate of reaction.
