Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

In which situation can a mixture always be called a solution

No copying 15 pts how does a free-body diagram tell you about the net force on an object?