Question

please answer any if you know any answer fast please . it's 9th class physics ,force and laws of motion.​

Answer 1

Answer:

A mole (mol) is the amount of a substance that contains 6.02 × 10 23 representative particles of that substance. The mole is the SI unit for amount of a substance. Just like the dozen and the gross, it is a name that stands for a number. There are therefore 6.02 × 10 23 water molecules in a mole of water molecules.

Explanation:

sorry I'm in 7 th grade I can't answer