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a) sód+tlen->tlenek sodu
4Na+ O₂ = 2Na₂O
b)woda->wodór+tlen
2H₂O = 2H₂+O₂
c)wapń+chlor->chlorek wapnia
Ca+Cl₂=CaCl₂
d)magnez+woda->tlenek magnezu+wodór
Mg + H₂O = MgO + H₂
e)tlenek ołowiu(II)+wodór->ołów+woda
PbO + H₂ = Pb + H₂O
f)magnez+tlenek węgla(IV)->tlenek magnezu+węgiel
2Mg + CO₂ = 2MgO + C
g)tlenek chromu(III)+glin->tlenek glinu+chrom
Cr₂O₃ + 2Al = Al₂O₃ + 2Cr
2.
a)4Al+ 3O₂->2 Al₂O₃
b)3H₂+N₂->2NH₃
c)H₂+Cl₂-> 2HCl
d)CH₄+ 2O₂-> CO₂+ 2H₂O