Question

Suggest a reason:
The reaction between maganese carbonate and dilute hydrochloric acid speeds up when some concentrated hydrochloric acid is added

Answer 1

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The higher concentration of hydrochloric acid will increase the amount of successful collisions per second as there will be more hydrochloric acid particles to collide with the calcium carbonate particles. Reaction takes place in a flask. Carbon Dioxide goes up a gas burette and into a measuring cylinder full of water.

Answer 2

ANSWER

Magnesium carbonate react with hydrogen chloride to produce magnesium chloride, carbon dioxide and water. Hydrogen chloride - diluted solution

MgCO3 + 2HCl → MgCl2 + CO2 + H2O