Answer:
BeCL2 .1st column 2nd column 3rd column
1. beryllium 2.chloride. 3.beryllium
chloride
I think there is mistake of chemical this is Na2SO4
Na2SO4-----column 1. column 2
1.disodium 2.sulfate
decahydrate
column 3
3.disodium sulfate decahydrate
Explanation:
this is my answer
