a) N₂ + 2O₂ = 2NO₂b) 4Na + O₂ =2 Na₂Oc) 2Cu + Cl₂ =2 CuCld) 3Fe + 2O₂ = Fe₃O₄e) H₂ + Cl₂ = 2HClf) 4P +5 O₂ = 2P₂O₅
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a) N₂ + 2O₂ = 2NO₂
b) 4Na + O₂ =2 Na₂O
c) 2Cu + Cl₂ =2 CuCl
d) 3Fe + 2O₂ = Fe₃O₄
e) H₂ + Cl₂ = 2HCl
f) 4P +5 O₂ = 2P₂O₅