Question

1 - 2Na + O2 ➔ Na2O Balanced Not Balanced

2 - 2NaNO3 ➔ 3NaNO2 + O2 Balanced Not Balanced




3 - 2Al + 3Cl2 ➔ AlCl3 Balanced Not Balanced




4- 2P + 3I2 ➔ 2PI3 Balanced Not Balanced





5 - 2Al + 2H3PO4 ➔ 3H2 + 2AlPO4 Balanced Not Balanced





6 - H2O2 ➔ 2H2O + O2 Balanced Not Balanced





7 - 2HCl + CuO → CuCl2 + H2O Balanced Not Balanced

Answer 1

1 not

2 not

3 not

4 balanced

5 not

6 not

7 balanced

Step-by-step explanation:

the amount of elements must be equal in the reactant and products