chemistry 1 0.0 / 5 ? ChemistryEnergy of reactions/Exothermic and endothermic reactionsAtoms and compoundsStructure and bondingWriting balanced equationsGCSEAQA Created by: cherries678Created on: 03-11-16 19:54 today's atmosphere 78% Nitrogen 21% Oxygen 1% carbon dioxide 1 of 5 exothermic chemical reactions where heat is transferred to the surroundings so it will rise the temperature. 2 of 5 endothermic The temperature will fall 3 of 5 the early atmosphere 92% Carbon dioxide 4% Nitrogen 2% Methane 2% Ammonia 4 of 5 removing air pollution to reduce air pollution we could use hybrid cars instead of 5 of 5
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