Question

1.Name the scientist who proposed the law of conservation of mass

2.what is the valency AI in AICI3?

3.The arrangement of eight electrons in the outermost shell is known as______

4.which isotop of hydrogen is used in atomic reactors?

5.which catalyst is used to increase the decomposition H2 O2?​

Answer 1

Answer:

1) Antoine Lavoisier's

2) valency of aluminium chloride

3) octet rule 

4) Deuterium

5) intra-cellular enzyme catalase.

Explanation:

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