Chemical Reactions 0.0 / 5 ? ChemistryChemical ReactionsGCSEEdexcel Created by: Phoebewarren1508Created on: 18-03-16 14:15 What happens in thermal decomposition? Metal Carbonates decompose when they are heated to form an oxide and carbon dioxide. Some decompose more easily than others. 1 of 5 When does a precipitation reaction occur? When two soluble substances react together to form a product that is insoluble. This insoluble product is the precipitate. 2 of 5 In a chemical reaction the atoms are... rearranged to form different substances. 3 of 5 .... .... 4 of 5 .... .... 5 of 5
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