Question

Balance the following chemical equations

1. _Na + _O2 -----> _Na2O
2. _Cl2 + _AlI3 ---> _AlCl3 + _I2
3. _Al + _HCl ---> _AlCl3 + _H2
4. _Na2S ----> _Na + _S​

Answer 1

1. 4 + __ —-> 2 + __

2. 3 + 2 —-> 2 + 3

3. 2 + 6 ——> 2 + 3

4. __ —-> 2 + ___

Step-by-step explanation: