State the law of definite proportions.

6.488 g of lead combines directly with 1.002g of oxygen to form lead peroxide. Lead peroxide also can be prepared by heating lead nitrate. It was found that the percentage of oxygen present in lead peroxide prepared by the second experiment is 13.38. Use this data to illustrate the law of definite proportions.

A simple iron oxide was found to contain 72.17% iron. 2 g of the oxide from another source gave 1.44 g of iron. Show that the results illustrate law of definite proportions.

Which of the following sets of compounds correctly illustrate the law of reciprocal proportions?

The laws of chemical combination governs the formation of compounds from elements. State the law of conservation of mass. Who put forward this law?

the laws of chemical combination governs the formation of compounds from elements. State the law of conservation of mass. Who put forward this law?

State the gas laws.

State and explain law of multiple proportions with example.