HOTS question — task. Science State Board, Class 10.

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Calcium carbonate is decomposed on heating in the following reaction:

$CaCO_3→CaO+CO_2$

i). How many moles of calcium carbonate are involved in this reaction?

ii). Calculate the gram molecular mass of calcium carbonate involved in this reaction.

iii). How many moles of $CO_2$ are there in this equation?

Answer:

i).

Number of moles of

$CaCO_3$ involved in this reaction

$=$

ii).

Molar mass of calcium

$=$

Molar mass of carbon

$=$

Molar mass of oxygen

$=$

Gram molecular mass of

$CaCO_3$

$=$

iii).

Number of moles of

$CO_2$ in the reaction

$=$

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14. HOTS question