Ehrer(222) 5. If the temperature of 20.0 kilograms of water changes from 15.0°C to
45.0°C. How much heat energy was added in kj?

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.

In one or two grammatically correct sentences, write a definition for the term molecule geometry