CBSE Class 9 Chemistry Laws of Chemical Combination

Q.

Which of the following is not a chemical change?



Q.

Who proposed the law of combination of mass?



Q.

What is the ratio of nitrogen to hydrogen in ammonia?



Q.

Which of the following is an example of the law of multiple proportions?



Laws of Chemical Combination

This video explains the law of conservation of mass, the law of multiple proportions and the law of chemical combination.