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WAEC Chemistry 2016 Paper

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Question : 30

Total: 50

Which of the following factors will affect the rate of the reaction represented by the following equation?
2HCl(aq) + CaCO3(s) → CaCl2(aq) + H2O(1) + CO2(g)

I. Pressure
II.Concentration
III. Nature of reactants
IV. Temperature

I and II only
II, III and IV only
I, II and III only
I, II. III and IV

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