Answer:
a) (SO4)2 + Ba2 = BaSO4
b) (CO3)2 + 2H = H2O + CO2
c) NH4 + 2Na = Na + 2N + 2H
There u go :D
The first one
Explanation:
(Plz give brainleist)
C
Hope this helped! -Sierra<3
It's c (13)
12 is Freezing
B
This is because since it is has less mass, it will accelerate faster, making it travel farther and faster.
