What information is conveyed by the following equation ?
`CaCO_(3) (s) overset("Heat")to CaO(s) + CO_(2)(g)`
(Given : atomic mass of Ca = 40, C = 12, O = 16)

Explanation

The information gathered from the data given may be summed up as follows:
(i) Calcium carbonate upon heating decomposes to give calcium oxide and carbon dioxide.
(ii) In terms of symbol equation, `CaCO_(3(s))` decomposes to give `CaO_((s))andCO_(2(g))`.
(iii) 1 molecule of `CaCO_(3)` decomposes into 1 molecule of CaO and 1 molecule of `CO_(2)`.
(iv) 1 mole of `CaCO_(3)` decomposes into 1 mole of CaO and 1 mole of `CO_(2)`.
(v) 100 g of `CaCO_(3)` decomposes into 56 g of CaO and 44 g of `CO_(2)`.