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Natali [406]
3 years ago
11

Why is it important for scientists to keep testing a hypothesis even after they’ve found it to be true?

Chemistry
1 answer:
Drupady [299]3 years ago
6 0

Answer: A hypothesis is generally based upon either someone else's observation or on previous studies.

Explanation: They just keep testing it to make sure it's <em>always </em>true.

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5.4

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If heat transfers from the system (solute) to the surroundings (solvent), then AH is
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Answer:

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Explanation:

Hello!

In this case, we need to keep in mind that exothermic reactions release heat, so they increase the temperature as the final energy is less than the initial energy; in contrast, endothermic reactions absorb heat, so they decrease the temperature as the final energy is greater than the initial energy.

In such a way, when a dissolution process shows off a negative enthalpy of dissolution, we infer it is an exothermic process due to the aforementioned; therefore, the answer is:

B) exothermic .

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