21-09-2020
Chemistry

contestada

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

Respuesta :

nawaalkanji38 nawaalkanji38

30-09-2020

Answer:

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

Answer Link

ibbeibrahim104 ibbeibrahim104

05-09-2021

Answer:

A endothermic

Explanation:

when two objects rub each other to form heat.

it is also known as friction force

Answer Link

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