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1992 WAEC Chemistry Theory  Magnesium ribbon reacts with dilute hydrochloric acid at room temperature. (a) State three ways by...

Chemistry
WAEC 1992

 Magnesium ribbon reacts with dilute hydrochloric acid at room temperature.

(a) State three ways by which the reaction can be made to proceed faster

(b) Write an equation for the reaction.

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Explanation

(a) Grind the magnesium ribbon into powder to increase its surface area which increases the rate of reaction Increase in the concentration of the copper will increase the rate of reaction. At lower than room temperature at catalyst can be applied to increase the rate of reaction.

(b) Mg\(_{(s)}\) + 2HCI\(_{(aq)}\) --> MgCl\(_{2(aq)}\) + H\(_{2(g)}\)

.


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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995