Please help me out with this question if you help me I will give you the brain thing and extra points. 4/9 image below.

What are transitions between a liquid and gas called? identify which way they are transitioning

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?