10:1 Chemistry

Ab chemical potential energy chemical potential

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Unformatted text preview: PE converted to KE as the reaction proceeds. C+D products substrates For example: A + B chemical (potential) energy chemical (potential) energy A + B CH4 + 2 O2 1 A+B 2 E+F The amount of KE that is needed to be converted to PE to start the reaction (activation energy). 2 H2 O + CO 2 substrates substrates The amount of PE converted to KE as the reaction proceeds. products products For example: 2 The amount of KE that is needed to be converted to PE to start the reaction (activation energy). 1 CH4 + 2 O2 E + F A+B The amount of PE converted to KE as the reaction proceeds. 2 H2 O + CO 2 products substrates chemical (potential) energy chemical (potential) energy A + B Release or conversion of potential energy to kinetic. Gets warmer. exothermic, exergonic breaking down energy releasing catabolic More likely because activation energy is less CH4 + 2 O2 2 H2 O + CO 2 substrates Endothermic endergonic, building energy storing anabolic products products substrates For example: chemical (potential) energy increasing chemical (potential) energy Redox reactions: H HCH CH4 + 2 O2 Define: Reduction- carbon reduced H Oxidation- products decreased association CO decreased association with electrons carbon reduced carbon oxidized increased association with electrons H carbon oxidized substrates increased association decreased association with electrons increased association with electrons 2 H2 O + CO 2 H OCO Water: 2δ - Water is *NOT* a charged molecule O H - δ+ δ + H Water has interesting properties - polar - solid form of water is less dense than liquid form of water δ+ Polar covalent bonds H 2δ O H δ + 2δ - δ+ H hydrogen bond O H δ+ Check your understanding: In which of the below molecules are the carbons overall more reduces? Which molecule has the most chemical energy? HO O (pyruvic acid) HCCC OH H H H OH O (lactic acid) HCCC OH HH 9-4...
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