What thermoplastic has really good insulation properties?​

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.

Why is nh3 classified as a polar molecule

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.