Mercury+Oxygen----> Mercury Oxide
4Na + O2 ----> 2Na2O Sodium oxide is formed.
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Symbol Equation= CuCO3 - CuO + CO2 Word Equation= Copper Carbonate - Copper Oxide + Carbon Dioxide
Barium Carbonate + Oxygen -> Barium Oxide + Carbon Dioxide
2 molecules of mercuric oxide yields 2 atoms of mercury and 2 of oxygen.
Calcium carbonate thermally decomposes when heated to form calcium oxide powder and carbon dioxide gas. The word equation: calcium carbonate --> calcium oxide + carbon dioxide As a symbol equation: CaCO3 --> CaO + CO2
calium oxide
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PbO
When calcium carbonate is heated, it breaks down by thermal decomposition to carbon dioxide & calcium oxide (quicklime). Here is the word equation: Calcium carbonate --> Calcium oxide + Carbon dioxide Here is the chemical equation: CaCO3 (s) --> CaO (s) + CO2 (g)
copper+oxygen-----copper oxide