The atoms in a sample are close together but can side past one another. As the atoms lose energy, they move slower. The atoms become locked in place because of attractive forces between them. Which change of state is taking place

Gas to solid
Gas to liquid
Liquid to solid
Solid to liquid

Iam in desperate need of with this !

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.