CH-1657
Surface area
Chemistry · Secondary 4 · Medium · Surface area
A student reacts excess magnesium with dilute hydrochloric acid and measures the volume of hydrogen gas produced every 20 s.
Which change will increase the initial rate of reaction without changing the total volume of hydrogen produced?
Which change will increase the initial rate of reaction without changing the total volume of hydrogen produced?
- increasing the volume of acid used
- using powdered magnesium instead of strips
- using magnesium carbonate instead of magnesium
- increasing the temperature and using less acid
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