Question: Balance these equations: (a) ____ Fe(s) + ____ O 2 (g) ____ Fe 2 O 3 (s) (b) ____ H 2 (g) + ____

Balance these equations:
(a) ____ Fe(s) + ____ O2(g) → ____ Fe2O3(s)
(b) ____ H2(g) + ____ N2(g) → ____ NH3(g)
(c) ____ Cl2(g) + ____ KBr(aq) → ____ Br2(l) + ____ KCI(aq)
(d) ____ CH4(g) + ____ O2(g) → ____ CO2(g) + ____ H2O(l)

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