Answer:
18- H
19- D
20-G
21-A
(i think these are the answers)
Explanation:
This is what I got. Hope it helps :)
HAVE A NICE DAY OK
I GOT UR ANSWER
Molar mass of KF= 39 + 19= 58g/mol
Mass of KF = 109g
Amount = mass/molar mass
Amount = 109/58
Amount = 1.9moles
The correct answer is...
A) 1/2 hour
