6 types of decomposition reactions
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One
Metal carbonates decompose to produce metal oxides and carbon dioxide (Na2CO3-->Na2O+CO2)
Three
Metal chlorates decompose to produce metal chlorides and oxygen gas KClO3-->KCl+O2
Two
Metal hydroxides decompose to produce metal oxides and water Ca(OH)2-->CaO+H2O
Four
Oxyacids decompose to produce water and a nonmetal oxide gas 2HNO3-->H2O+N2O5
Five
metal oxides decompose to produce metals and oxygen gas Au2O3--> O2+Au
Six
water can decompose to produce oxygen gas and hydrogen gas H2O-->H2+O2