Question

Which of the following is not a balanced equation?

A. Li(s) + H2O(l) → H2(g) + LiOH(aq)

B. 2Fe(s) + O2 (g) → 2FeO(s)

C. 2Na(s) + 2H2O(l) → 2NaOH(s) + H2 (g)

D. CaCO3 (s) + 2HCl(aq) → CO2 (g) + CaCl2 (aq) + H2O(l)

Answer 1

Why do i think this is more part of chemistry? hahah

Answer 2

so u need to observe relations between atoms:
A. 2Li(s) + 2H2O(l) → H2(g) + 2LiOH(aq)

Answer 3

100% sure A. Li(s) + H2O(l) → H2(g) + LiOH(aq)