Q16 Hydrogen bonding can occur between molecules of methanal, HCHO, and molecules of liquid Y. What could liquid Y be?
ACH3OH
B CH3CHO
C CH3COCH3
D CH3CO2CH3​

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.

Name the element in group 17, period 2. (periodic table)

Is a pencil falling to the floor anon contact force, a force, or a contact force