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yuradex [85]
4 years ago
10

When is it necessary for a scientists to do research?

Chemistry
2 answers:
Andre45 [30]4 years ago
8 0

Answer: A. before forming a hypothesis

C. after generating an idea from an observation

D. when designing an experiment to test a hypothesis

Explanation:

A. before forming a hypothesis: A background research of the previous research studies as well as the literature review is to be done before constructing a hypothesis.

C. after generating an idea from an observation:  After generating an idea from the observation other methodology should be implemented so as to rectified the fact that the observation is correct.

D. when designing an experiment to test a hypothesis: While implementing a suitable scientific methodology a research is required to be done so as test the hypothesis by an accurate and valid procedure.  

MAXImum [283]4 years ago
5 0
I would say A and D. A is right for sure, as for D, I'm not so sure. Hope this helps!
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Equivalent mass of AL2O3​
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Answer:

Mass = 102g

Explanation:

Given

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Required

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The atomic mass of Aluminium is:

Al = 27

The atomic mass of Oxygen is:

(O) = 16

So, the equivalent mass is:

Mass = 2 * 27 + 3 * 16

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Mass = 102g

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Elenna [48]

Answer:

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Explanation:

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3 years ago
What does Gibbs free energy predict?
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Answer:

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