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1. Chemical Reations and Equations
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Q39 of 152 Page 46

In the reaction represented by the following equation:


(a) name the substance oxidized


(b) name the substance reduced


(c) name the oxidizing agent


(d) name the reducing agent

(a) Hydrogen, H2

(b) Copper oxide, CuO


(c) CuO, Copper oxide


(d) Hydrogen, H2



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38 What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved. 38 Write balanced chemical equation with state symbols for the following reaction:

Barium chloride solution reacts with sodium sulphate solution to give insoluble barium sulphate and a solution of sodium chloride.

40 What happens when silver nitrate solution is added to sodium chloride solution?

(a) Write the equation for the reaction which takes place.


(b) Name the type of reaction involved.

41 What happens when silver chloride is exposed to sunlight? Write a chemical equation for this reaction. Also give one use of such a reaction.
Questions · 152
1. Chemical Reations and Equations
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