Chemistry, 13.03.2021 03:00, KittyLoverCat
Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter at 22.4 o C causes the temperature to rise to 25.8 o C. What is the approximate amount of heat involved in the dissolution, assuming the specific heat of the resulting solution is 4.18 J/g o C? Is the reaction exothermic or endothermic?
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Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.
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Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.
Answers: 1
Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter at 22.4 o C causes the temperature...
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