Calculate the number of molecules in 11 g of `CO_(2)`

(a) What happens during a chemical change? (b) Calculate the number of molecules in 11g of CO_(2) .

(i) Calculate the number of molecules in 11g of CO_(2) . (ii) Calculate the number of moles in 81g of aluminium.

Calculate the number of molecules present in 11 g of CO_2 .

Calculate the number of molecules in 33 g of CO_2 .

Calculate the number of molecules in 44 g of CO_2 .