CH-714
Surface area
Chemistry · Secondary 3 · Medium · Surface area
A student measures the rate of reaction between marble chips (calcium carbonate) and excess hydrochloric acid by collecting the carbon dioxide gas produced. Which change will increase the rate of reaction the MOST?
- Using larger marble chips instead of powdered marble.
- Diluting the acid with water.
- Cooling the reaction mixture in an ice bath.
- Crushing the marble chips into a fine powder.
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