Chemical Reactions 0.0 / 5 ? ChemistryOtherOther Created by: OLivCreated on: 29-05-13 13:52 862437159 Across 1. magnesium + oxygen → magnesium oxide (9) 4. Gives out heat (10) 5. copper oxide + hydrogen → copper + water (9) 8. calcium carbonate-->calcium oxide + carbon dioxide (7, 13) 9. chlorine + sodium bromide → sodium chloride + bromine (12) Down 2. hydrocarbon + oxygen → carbon dioxide + water (10) 3. Takes in heat (11) 6. Perfectly safe chemists must always zoom into the laboratory carefully (8, 6) 7. Acid+base--> salt+water (14)
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