Question

The percentage of copper and oxygen in samples
of CuO obtained by different methods were found
to be the same. The illustrate the law of
(a) constant proportions
(b) conservation of mass
(c) multiple proportions
(d) reciprocal proportions

Answer 1

Answer:

Tha answer is option b

Conservation of mass

Answer 2

Answer: (a) Law of constant proportions

Explanation:

This is because as the percentage and ratio remains constant...

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