What is the balance, total and molecular formula for BaCl2 + CuCl2, CaCl2 + NaC2O4

The first equation is so wrong... you cannot react 2 metal chlorides together...

The second equation is written as so: CaCl2 + Na2CO2 = 2NaCl + CaCO2

both look wrong man, are you so you posted viable reactions with the correct number?

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I would agree that there would be no reaction between the two chlorides.

However, in the second reaction...

Are you indicating sodium oxalate? That would be Na2C2O4 - or something else?