Q2
What is the molarity of a solution that contains
0.500 mole of KNO, dissolved in 0.500-liter of
solution?
(1) 1.00 M
(3) 0.500 M
(2) 2.00 M
(4) 4.00 M

Ineed ! i have no clue how to do this problem.

What volume would 2.25 moles of ne has occupy at stp?

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.