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(i) Name the substance ‘X’ and write its formula. (ii) Write the reaction of the substance ‘X’ named in (i) above with water.

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+2 votes
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asked Mar 7, 2017 in Chemistry by sforrest072 (157,439 points) ● 61 ● 410 ● 940

A solution of a substance ‘X’ is used for white washing. (i) Name the substance ‘X’ and write its formula. (ii) Write the reaction of the substance ‘X’ named in (i) above with water.

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+2 votes
answered Mar 8, 2017 by vikash (21,277 points) ● 4 ● 19 ● 70
selected Mar 8, 2017 by sforrest072
 
Best answer

(i). The substance ‘X’ is calcium oxide. Its chemical formula is CaO. 

(ii). Calcium oxide reacts vigorously with water to form calcium hydroxide (slaked lime)

CaO+H2O → Ca(OH)2

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