Balancing Chemical Equations

$__O_{2 (g)} \to__O_{3 (g)}$
$__{C H}_{4 (g)} +__O_{2 (g)} \to__C_{(s)} +__H_{2} O_{(l)}$
$__{H_{2} O_{2}}_{(l)} \to__{H_{2} O}_{(l)} +__{O_{2}}_{(g)}$
$__N_{2 (g)} +__H_{2 (g)} ⇌__{N H}_{3 (g)}$
$__{Cl}_{2}_{(g)} +__{K Br}_{(s)} \to__{K Cl}_{(s)} +__{Br}_{2}_{(l)}$
$__{Al}_{(s)} +__O_{2 (g)} \to__{Al}_{2} O_{3 (s)}$
$__P_{4 (s)} +__{Cl}_{2 (g)} \to__P {Cl}_{3}$
$__P_{4 (s)} +__O_{2 (g)} \to__P_{4} O_{10 (s)}$
$__{H Cl}_{(aq)} +__{Ca {(O H)}_{2}}_{(aq)} \to__{Ca {Cl}_{2}}_{(s)} +__{H_{2} O}_{(l)}$
__ C₂H₅OH_(l)+ __O_2(g) → __ CO_2(g) + __ H₂O_(g)
$__K_{(s)} +__{H_{2} O}_{(l)} \to__{K O H}_{(aq)} +__{H_{2}}_{(g)}$
__ HNO₃_(aq) + __CaCO₃_(s) → __ Ca(NO₃)₂_(aq) + __ CO₂_(g) + __ H₂O_(l)
__ POCl_3(l) + __ H₂O_(l) → __ H₃PO_4(aq) + __ HCl_(aq)
__ Fe₂O_3(s) + __ H_2(g) → __ Fe_(s) + __ H₂O_(l)
$__{H_{2}}_{(g)} +__{O_{2}}_{(g)} \to__{H_{2} O}_{(l)}$
$__{Fe F_{3}}_{(s)} +__{Ca}_{(s)} \to__{Fe}_{(s)} +__{Ca F_{2}}_{(s)}$
$__{C H_{4}}_{(g)} +__{H_{2} O}_{(l)} \to__{C O}_{(g)} +__{H_{2}}_{(g)}$
$__{Al}_{(s)} +__{Fe}_{2} O_{3}_{(s)} \to__{Fe}_{(s)} +__{Al}_{2} O_{3}_{(s)}$
__ V₂O₅ + __ HCl_(aq) → __ VOCl₃ + __ H₂O_(l)
__ Fe_(s) + __ H₂O_(l) → __ Fe₃O₄ + __ H_2(g)
__ C₃H₆ + __ O_2(g) → __ CO + __ H₂O_(l)
__ Ca₃(PO₄)₂ + __ C → __ Ca₃P₂ + __ CO
__ S₈ + __ O_2(g) → __ SO₃
__ C₃H₈ + __ O_2(g) → __ CO_2(g) + __ H₂O_(l)
__ CoO + __ O_2(g) → __ Co3O₄
__ C₃H₆O₂ + __ O_2(g) → __ CO_2(g) + __ H₂O_(l)
__ CH_4(g) + __ O_2(g) → __ CO_2(g) + __ H₂O_(l)
__ LiH + __ AlCl3 → __ LiAlH4 + __ LiCl
__ Pb(NO₃)₂ → __ PbO + __ NO₂ + __ O_2(g)
__ CH_4(g) + __ O_2(g) → __ CO_(g) + __ H₂O_(g)
__ CH_4(g) + __ O_2(g) → __ CO + C_(s) + __ H₂O_(l)
__ CH_4(g) + __ O_2(g) → __ CO_2(g) + CO + __ H₂O_(l)
__ Cu(CN)₂ → __ CuCN + __ C₂N₂
__ PCl₃ + __ H₂O_(l) → __ P(OH)₃ + __ HCl_(aq)
__ KBr + __ Al(ClO₄)₃ → __ AlBr₃ + __ KClO₄
__ HCl_(aq) + __ MnO₂ → __ MnCl₂ + __ H₂O_(l) + __ Cl_2(g)
__ CrO₄^2- + __ H⁺ → __ Cr₂O₇^2- + __ H₂O_(l)
__ OH^- → __ H₂O_(l) + __ O₂_(g) + __ e^-
__ Fe₂O₃_(s) + __ CO → __ Fe_(s) + __ CO_2(g)
__ H₃PO₄ + __ BaO → __ Ba₃(PO₄)₂ + __ H₂O_(l)
__ MgNH₄PO₄ → __ Mg₂P₂O₇ + __ NH₃ + __ H₂O_(l)
__ Al + __ H₂SO₄ → __ Al₂(SO₄)₃ + __ H₂_(g)
__ P₄O₁₀ + __ HCl_(aq) → __ POCl₃ + __ HPO₃
__ NO + __ H₂O_(l) + __ O_2(g) → __ HNO_3(aq)
__ Br_2(l) + __ NaOH_(aq) → __ NaBr + __ NaOBr + __ H₂O_(l)
__ Ca₃(PO₄)₂ + __ H₃PO₄ → __ Ca(H₂PO₄)₂
__PCl₅ + __ P₄O₁₀ → __POCl₃
$__Ca C O_{3 (s)} +__H {Cl}_{(aq)} \to$
$__O_{2 (g)} +__{N H}_{3 (aq)} + \to__{N H O}_{3 (aq)} +__H_{2} O_{(l)}$