When potassium chloride is dissolved in water, heat is transferred from the surroundings to the system. What kind of reaction has occurred? What is the effect on potential energy of the system?

Which element is the least metallic between cadmium, silver, zinc, or iron?

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When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign