How many molecules are in 8.2 moles of water, H2o​

4.938×10^24 molecules

Explanation:

a mole is 6.023×10^23

(8.2)×(6.023×10^23)=4.938×10^24

a is the correct answer

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest