You're supplying heat to an unknown liquid. Its temperature rises until it stops at 78.4 °C. After some time the temperature starts to rise again.
What happened at 78.4 °C?

List four observations that indicate that a chemical reaction may be taking place

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.

Rank substituents in order of their priority when assigning the e or z label to an alkene. i, ch2i , h, ch2ch2cl, f