We're being asked to write the balanced chemical equation for the reaction. Before balancing the chemical reaction, let’s first write the chemical formula of the compounds involved in the reaction.
▪ Barium → Group 2A → +2 charge → Ba2+
▪ Carbonate → polyatomic ion → CO32- → -2 charge
▪ Balance the charges of Ba2+ and CO32- → exchange (criss-cross) the numbers of the charges
aluminum acetate: BaCO3
Write a balanced chemical equation for the reaction that occurs when barium carbonate decomposes into barium oxide and carbon dioxide gas when heated.
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