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Published byBeverley Stokes Modified over 9 years ago
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Step 1: Energy must be SUPPLIED to break chemical bonds: Step 2: Energy is RELEASED when new chemical bonds are made:
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A change (like a chemical reaction) that requires (or absorbs) heat So what would it feel like?
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Endothermic reactions take in heat and the temperature drops reaction
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A change (like a chemical reaction) that releases heat.
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Exothermic reactions give off heat and the temperature of the substance rises So what would it feel like? reaction
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Exothermic Combustion of fuels Yeast & Hydrogen Peroxide Epsom salts & water Endothermic Photosynthesis Acetic Acid (vinegar) & Sodium Bicarbonate (baking soda)
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