what volume of CO2gas is produced when 20g of 20% pure CaCO3 is completely heated?
Ans: 896 ml
0.46g of a metal produced 0.77g of metal oxide. 0.805g of the same metal displaced 760 cc of H2 gas at NTP from HCL. 1.26g of water was formed by the union of 1.12g of oxygen with hydrogen. Show that these data illustrate the law of reciprocal proportions.
Ans: (a) 0.67g (b) 1:8 (c)1:8
