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Exothermic or endothermic reactions
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exstreermic at endothermic EXOTHERMIC REACTION aff ● O O heat energy is released during a reaction. The value of AH is neg. the temperature of the survouadings increases. Hreactants is bigger than the products Examples: 0 O Example of a specific reaction: when magnisium reactes with sulfuric acid in a test-tube. the energy released is transferred to the surroundings and the temp. of the reaction mixture in the tube 0 the combustion of fuels Mg(s) + H₂504 (ag) -> Masoucaq) + H₂(g) cenergh released) 0 the oxidation of carbohydrates in the bodies of animals. and plants (respiration) The surroundings include: 2009 the reaction of water with quicklime (calcium oxide) O the solvent (in this case H₂0) the air around the test tube the test tube itself anything dipping into the test-tube Ceg. a thermometer) dan 2 H F ENDOTHERMIC ● Grot 0 0 neat energy is absorbed during a reaction The value of AH is pos. the temp. of the surroundings decreases REACTION Hreactants is smaller than the products Examples: O O the decomposition of limestone by heating Call thermal decomposition reactions are endothermic O photosynthesis (in which the energy is supplied by sunlight) dissolving certain ammonium salts in water Nhcaa) + c (aa) NH₂ Cl(s) ammonium unconde chloride ions + 99. -> water amming nilim ions Example of a specific reaction: when sodium hydrogencarbonate reacts with an aqueous solution of citric acid in a test-tube. , the temp. of the reaction mixture in the tube decreases bec. the citric acid & sodium hydrogencarbonate are absorbing the heat energy from the solvent the test-tube & the air. Q....
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Alternative transcript:
Classifn each process as exothermic or endothermic a) the burning of magnesium in air exothermic b) the crystallisation of copper (11) sulfate from a saturated solution exothermic c) the thermal decomposition of magnesium nitrate endothermic d) the fermentation of glucose by yeast exothermic el the evaporation of sea water. endothermic
Notes include: - key words - examples of exothermic reaction - example of a specific reaction - examples of endothermic reactions - example of a specific reaction - practice questions
Notes include: - key words - examples of exothermic reaction - example of a specific reaction - examples of endothermic reactions - example of a specific reaction - practice questions
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exstreermic at endothermic EXOTHERMIC REACTION aff ● O O heat energy is released during a reaction. The value of AH is neg. the temperature of the survouadings increases. Hreactants is bigger than the products Examples: 0 O Example of a specific reaction: when magnisium reactes with sulfuric acid in a test-tube. the energy released is transferred to the surroundings and the temp. of the reaction mixture in the tube 0 the combustion of fuels Mg(s) + H₂504 (ag) -> Masoucaq) + H₂(g) cenergh released) 0 the oxidation of carbohydrates in the bodies of animals. and plants (respiration) The surroundings include: 2009 the reaction of water with quicklime (calcium oxide) O the solvent (in this case H₂0) the air around the test tube the test tube itself anything dipping into the test-tube Ceg. a thermometer) dan 2 H F ENDOTHERMIC ● Grot 0 0 neat energy is absorbed during a reaction The value of AH is pos. the temp. of the surroundings decreases REACTION Hreactants is smaller than the products Examples: O O the decomposition of limestone by heating Call thermal decomposition reactions are endothermic O photosynthesis (in which the energy is supplied by sunlight) dissolving certain ammonium salts in water Nhcaa) + c (aa) NH₂ Cl(s) ammonium unconde chloride ions + 99. -> water amming nilim ions Example of a specific reaction: when sodium hydrogencarbonate reacts with an aqueous solution of citric acid in a test-tube. , the temp. of the reaction mixture in the tube decreases bec. the citric acid & sodium hydrogencarbonate are absorbing the heat energy from the solvent the test-tube & the air. Q....
exstreermic at endothermic EXOTHERMIC REACTION aff ● O O heat energy is released during a reaction. The value of AH is neg. the temperature of the survouadings increases. Hreactants is bigger than the products Examples: 0 O Example of a specific reaction: when magnisium reactes with sulfuric acid in a test-tube. the energy released is transferred to the surroundings and the temp. of the reaction mixture in the tube 0 the combustion of fuels Mg(s) + H₂504 (ag) -> Masoucaq) + H₂(g) cenergh released) 0 the oxidation of carbohydrates in the bodies of animals. and plants (respiration) The surroundings include: 2009 the reaction of water with quicklime (calcium oxide) O the solvent (in this case H₂0) the air around the test tube the test tube itself anything dipping into the test-tube Ceg. a thermometer) dan 2 H F ENDOTHERMIC ● Grot 0 0 neat energy is absorbed during a reaction The value of AH is pos. the temp. of the surroundings decreases REACTION Hreactants is smaller than the products Examples: O O the decomposition of limestone by heating Call thermal decomposition reactions are endothermic O photosynthesis (in which the energy is supplied by sunlight) dissolving certain ammonium salts in water Nhcaa) + c (aa) NH₂ Cl(s) ammonium unconde chloride ions + 99. -> water amming nilim ions Example of a specific reaction: when sodium hydrogencarbonate reacts with an aqueous solution of citric acid in a test-tube. , the temp. of the reaction mixture in the tube decreases bec. the citric acid & sodium hydrogencarbonate are absorbing the heat energy from the solvent the test-tube & the air. Q....
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Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.
Still not sure? Look at what your fellow peers are saying...
iOS User
I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D
Stefan S, iOS User
The application is very simple and well designed. So far I have found what I was looking for :D
SuSSan, iOS User
Love this App ❤️, I use it basically all the time whenever I'm studying
Alternative transcript:
Classifn each process as exothermic or endothermic a) the burning of magnesium in air exothermic b) the crystallisation of copper (11) sulfate from a saturated solution exothermic c) the thermal decomposition of magnesium nitrate endothermic d) the fermentation of glucose by yeast exothermic el the evaporation of sea water. endothermic