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kherson [118]
3 years ago
9

Most chemical reactions involve the evolution or absorption of heat energy. True or False

Chemistry
1 answer:
sergejj [24]3 years ago
7 0

Answer:

True

Explanation:

The majority of the reactions happened with a flow of heat. When there's no heat, the reaction is adiabatic.

For no adiabatic reactions, the heat can be released (evolution) by the system, so the reaction will be exothermic, or absorbed by the system (absorption), then the reaction is called endothermic.

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There are ______ electrons, _______ protons, and ______ neutrons in an atom of .
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Full question :

Q. There are ________ electrons,_______ protons, and ______ neutrons in an atom of 132 Xe.54.

a) 78 78 132

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c) 54 54 132

d) 78 78 54

e)132 132 54

Learn more about Xenon here : brainly.com/question/124136

#SPJ4

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