Draw two laboratory procedures to separate and purify the Flufenamic acid from the aqueous layer

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

Why is the melting of ice a physical change ?

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.