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HCl + NaOH -> H2O + NaCl
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Na2CO3 -> Na2O + CO2
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NH4OH + HBr -> H2O + NH4Br
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NaOH + KNO3 -> NaNO3 + KOH
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CaSO4 + Mg(OH)2 -> Ca(OH)2 + MgSO4
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Pb + O2 -> PbO2
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2Fe + 6NaBr -> 2FeBr3 + 6Na
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CH4 + 2O2 -> CO2 + 2H2O
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2 KCl + 1 Mg(OH)2 → 2 KOH + 1 MgCl2
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1 AlCl3 + 3 Cs → 3 CsCl + 1 Al
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