2.0g divided by 34.0 g times 100% equals what?

How have the greenhouse gasses increased from the year 2000 to 2018

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms

Is the flow of energy during vaporizing more like the flow during melting or during freezing