Essential Chemistry for IGCSE - Rate Of Reaction (Section 4 - No. 3)
If you want to increase the rate of reaction using magnesium and hydrochloric acid, what can you do?
Use larger pieces of magnesium
Decrease the temperature of the acid
Increase the concentration of the acid
Add water to the reaction
Explanation
Increasing the concentration of the reactants increases the collision frequency, hence increasing the rate of the reaction.
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