3. A(n) reaction happens when chemical bonds give off heat. A. Endothermic B. Exothermic Metallic C. D. Covalent PLEASE HELP

asked Mar 26, 2021 219k views

4 votes

3.

A(n) reaction happens when
chemical bonds give off heat.
A.
Endothermic
B.
Exothermic
Metallic
C.
D.
Covalent
PLEASE HELP

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5 votes

Answer:

A endothermic

Step-by-step explanation:

when two objects rub each other to form heat.

it is also known as friction force

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7 votes

Answer:

it's A endothermic its when two objects rub each other to form heat this is also known as friction force

Rick Pat answered Mar 31, 2021

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