Which action would you use to determine the melting point of a substance?(1 point)

Question

decreasing its temperature until it transitions from a solid to a liquid
decreasing its temperature until it transitions from a gas to a liquid
increasing its temperature until it transitions from a solid to a liquid
increasing its temperature until it transitions from a liquid to a gas

Answer 1

To determine the melting point of a substance, you would use the action of increasing its temperature until it transitions from a solid to a liquid. The melting point is defined as the temperature at which a solid becomes a liquid, so heating the solid until it melts is the correct approach.