Question

explain how you can predict which metal will replace another metal in a chemical reaction.

--C2H2+__O2 --> __CO2+H2O

Answer 1

Those are two separate questions. 1.) Explain 2.)Balance
thanks!~ I will give out metals if you answer both.

Answer 2

1. Based on their activity/reactivity. Refer to a different source for more information.

2. C2H2+(5/2)O2 --> 2CO2+H2O
Which can be changed to:
2C2H2 + 5O2 --> 4CO2 + 2H2O.

Please run through with your teacher the methods of balancing equations.