What needs to happen for a solute to dissolve in a particular solvent?

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.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

What is the percent by mass of oxygen in fe2o3