The dissociation of a salt in water to from an aqueous solution is called enthalpy of solution, δhsoln. the δhsoln for cacl2 is -120 kj/mol. when cacl2 is added to water a) the temperature of the water will increase. b) the temperature of the water will remain the same. c) the process is endothermic. d)nothing will occur, cacl2 is insoluble.
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When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?
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If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?
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Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2
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The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
The dissociation of a salt in water to from an aqueous solution is called enthalpy of solution, δhso...
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