Question

1. State the two laws of chemical combinations. 2. Can there be a variation in the chemical composition of two samples of pure water taken from two different places? Explain. 3. If 3g of carbon burns in 8g oxygen to produce 11g of carbon dioxide. Then how much carbon dioxide will be produced if 12g of carbon is burnt in 32g of oxygen? Which law of chemical combination will govern your answer? 4. Which elements are involved in the formation of Ammonia and Carbon dioxide?

Answer 1

1.The law of the conservation of mass, in which mass before reaction has to equal mass after reaction. The law of constant proportions, in which the ratio mass for the same compound is constant. The law of multiple proportions, in which multiple elements can combine with each other in multiple ratios; and finally.