Which of the following word best describe the diagram

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.

Find the number of moles of argon in 364g of argon.

One similarity and one difference between an element and a mixture of elements