What is the percent composition of cuo if a sample of cuo with a mass of 62.5 g contains 12.5 g of oxygen (o) and 50 g of cu?

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The percent composition of CuO is 80%(Cu) and 20%(O)

Explanation:

Given:

Percent (%) Composition of CuO

Cu = 1 x 50g      - Multiply by one as there is one Cu

O = 1 x 12.5g      - Multiply by one as there is one O

CuO = 62.5g

% for Cu = 50g over 62.5 multiplied by 100 = 80%

% for O = 12.5g over 62.5 multiplied by 100 = 20%

Final Answer :

Percent (%) Composition of CuO = 80% (Cu) & 20% (O)

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.