When a 5.00 g 5.00 g sample of KCN KCN is dissolved in water in a calorimeter that has a total heat capacity of 1.95 kJ ⋅ K − 1 , 1.95 kJ⋅K−1, the temperature decreases by 0.460 K . 0.460 K. Calculate the molar heat of solution of KCN .

What is the volume of 3.2 moles of chlorine gas (cl2) at 295 k and 1.1 atm?

Kelly has come up with an explanation for why her sister is sometimes in a good mood and other times in a bad mood. she speculates that it is based on the hours of sleep her sister got the previous night. this explanation for her sister's behaviors is an example of a(n)

1) a. water molecule breaks up into hydrogen and oxygen on passing electricity. does this involve breaking intermolecular or intramolecular forces of attraction. explain b. on boiling water changes to water vapor. does this involve breaking intermolecular or intramolecular forces of attraction. explain methanol evaporates faster than water. contrast the intermolecular forces and the vapor pressures of methanol and water?