Question

!DUE SOON PLEASE HELP!

Classify the chemical equations as being balanced or not balanced.
CaO + 3C → CaC2 + CO
Na + H2O → 2NaOH + H2
4Fe + O2 → 2Fe2O3
2Mg + O2 → 2MgO

Answer 1

balanced;

unbalanced;

unbalanced;

balanced;

Step-by-step explanation:

CaO + 3C → CaC2 + CO //all elements are balanced

Na + H2O → 2NaOH + H2 //Na is not balanced on the left

4Fe + O2 → 2Fe2O3 //O is not balanced on the left

2Mg + O2 → 2MgO //left is equal to right, balanced