Question

Which of the following is not a balanced equation?
a) H2 + O2 → H2O
b) Mg+CuSO4→ MgSO4+Cu
c) NaOH+Hcl→Nacl+ H2O
d) Zn+S→ ZnS​

Answer 1

Answer:

Which of the following is not a balanced equation?

$\:a) H_2 + O_2 \longrightarrow H_2O$

Explanation:

Correct balanced reaction is :

$2H_2 + O_2 \longrightarrow 2H_2O$