Which molecule has a lewis structure that does not obey the octet rule?

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.

What is the empirical formula for c4h8o2

Can someone me with 6 to 10 plz this is for masteries test.