1) Ajusta las siguientes ecuaciones químicas. Clasificar a) C(s) + O 2 (g) → CO 2 (g)
b) S(s) + O 2 (g) → SO 2 (g)
c) N 2 (g) + O 2 (g) → N 2 O 3 (g)
d) C(s) + O 2 (g) → CO(g)
e) Al(s) + O2(g) → Al 2 O 3 (s)
f) KClO 3 (s) → KCl(s) + O 2 (g)
g) Al(s) + O2(g) → Al 2 O 3 (s)
h) N 2 O 5 (s) + H 2 O(l) → HNO 3 (ac)
i) Cl 2 (g) + Kl(ac) → I 2 (s) + KCl(ac)
j) C 2 H 4 (g) + O 2 (g) → CO 2 (g) + H 2 O(g)

- measure reactants precisely. ( first choice)

- stir to the reaction take place. ( second choice)

- wait patiently until the reaction completes. ( fourth choice)

- make sure to recover as much copper as possible. ( last choice)

its c its is a mixture of gases

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this