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Download Energy in Chemical Reactions
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Energy in Chemical Reactions Exothermic Reactions • Heat (energy) is produced • Feels Hot to the touch • C3H8 + O2 CO2 + H2O + Heat Endothermic Reactions • Heat (energy) is needed as a reactant • 6CO2 + H2O + Heat C6H12O6 + 6O2 • Feels cold to the touch How Fast a Reaction happens • Inhibitor- Slows down a chemical Reaction – Is not used up in the reaction Ex. Food Preservative • Catalyst- speeds up a reaction – Is not used up in the reaction Ex. Palladium Unit 4 Test Topics Types of Bonds 1. Covalent – Formula and Names 2. Ionic • Counting Atoms • Formulas, Names and BIP’s 3. Balancing Chemical Equations 4. Types of Reactions 5. Energy in Reactions
