Can you use molecular orbital theory to explain why fluorine is such a highly reactive gas?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Match the mixture with the substance// i really need on this guys (it’s a pic btw)