Question

Dados (H) = 1 u.m.a , (N) = 14 u.m.a. (O) = 16 u.m.a. (C) = 12 u.m.a , (S) = 32 u.m.a (Na) = 23 u.m.a.
1) 2 H2 (g) + 1 O2(g) → 2 H2 O(g)
2) 1 C (s) + 1 O2(g) → C O2(g)
3) 1 N2 (g) + 1 O2(g) → N2 O2 (g)
4) 1 Na2O(s) + 1 H2O(l) → 2 NaOH (l)
5) 1 CO2(g) + 1 H2O(l) → 1 H2CO3(l)
6) 2 SO2 (g) + 1 O2(g) → 2 SO3 (g)
7) CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)

Answer 1

Resposta:

2) 1 C (s)+1O2(g) C O2 (g).