Question

16. Circle the letter of each chemical equation that is balanced.
a. H2 + O2 + H2O
b. Mg + O2 + Mgo
c. Na + O2 → Na20
d. 2 H2O2 → 2 H2O + O2
(How are you posted to know help please I don't get it...)​

Answer 1

Answer:

d

Explanation:

a) This is not an equation.

b) This is not an equation.

c) The reactant side has 1 Na and 2 O while the product side has 2 Na and 2 O, therefore it is not balanced

d) The reactant side has 4 H and 4 O and the product side has 4 H and 4 O, therefore it is balanced.