GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Calcium oxide and carbon dioxide
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Calcium chloride and hydrogen
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Calcium nitrate and hydrogen
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None of the above
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Detailed explanation-1: -CaCO 3 ( s ) ( Calcium carbonate ) + 2 HNO 3 ( aq ) ( Nitric acid ) → Ca ( NO 3 ) 2 ( aq ) ( Calcium nitrate ) + CO 2 ( g ) ( Carbon dioxide ) + H 2 O ( l ) ( Water )
Detailed explanation-2: -The compound calcium oxide reacts with nitric acid to give calcium nitrate and water.
Detailed explanation-3: -Calcium oxide reacts with nitric acid (HNO 3) to form aqueous calcium nitrate and water.
Detailed explanation-4: -It has been postulated that the reaction of nitric acid with calcium carbonate, namely, CaCO3(s) + 2HNO3(g) → Ca(NO3)2(s) + CO2(g) + H2O(g), plays an important role in the atmosphere.
Detailed explanation-5: -Calcium hydroxide react with nitric acid to produce calcium nitrate and water. The balanced chemical equation is: Ca(OH)2 + 2HNO3 → Ca(NO3)2 + 2H2O.