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Answer:
1.
a.) X is CaO Calcium oxide
b.) CaO + H2O = Ca(OH)2 + Heat
2.
It is because the gases present in water are present in the ratio 2:1
The gas is Oxygen...
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1
Explanation:
1.x=CaO
CaO+H2O------>Ca(OH)2+ heat
2.The activity shows the electrolysis of water.
It breaks into H2 and O.
Hence amount of Hydrogen is double the amount of oxygen.
The gas is hydrogen.
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