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Alex787 [66]
3 years ago
5

I need help pls I don’t understand

Biology
1 answer:
Yuri [45]3 years ago
7 0

Answer:

a) (SO4)2 + Ba2 = BaSO4

b) (CO3)2 + 2H = H2O + CO2

c) NH4 + 2Na = Na + 2N + 2H

There u go :D

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