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ElenaW [278]
2 years ago
6

Why is important to only test one variable at a time?

Chemistry
1 answer:
Natalija [7]2 years ago
4 0

Answer:

B

Explanation:

It is important to only test one variable at a time because you need to be able to disprove or prove a problem with just one independent variable. When you have several variables in the experiment, it would be impossible to know which variable honestly caused the end result.

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12, 28, 16

Explanation:

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We know there are 12 protons and electrons if we look at a table of elements, the number in the top-left is always the number of protons and we can subtract mass from the protons to get our electrons

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Roland is measuring a physical property of an object. He records the measurement:
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Answer:

The correct answer is density. See the explanation below, please.

Explanation:

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Explanation:

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