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Alika [10]
2 years ago
9

Which of these describes an exothermic reaction?

Chemistry
2 answers:
solong [7]2 years ago
8 0

In Endothermic reactions, energy is absorbed.

GenaCL600 [577]2 years ago
6 0

Answer:

The answer is "Energy is released by the reaction"

Explanation:

I took the test Trust me

If you get it wrong please mark wrong...

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Why is the pressure 101.3kPa significant
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Explanation:

The kPa-kilopascal is the unit of pressure. It was named after Blaise Pascal, a mathematician and physicist.

The kPa is 1000Pa. Kilo stands for 1000. Now what is a pascal?

A pascal is the amount of force(Newton) exerted per unit area.

            1Pa = 1Nm⁻²

At the standard atmospheric level, the pressure is 101.325 x 10³ Nm⁻² i.e the atmosphere exerts a pressure of 101.325 x 10³N in an area of a body.

This unit is used to calculate pressure. It can be converted to other units.

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Which experiment lead to the discovery that the tiny, dense nucleus contained most of
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