Question

6 multiple choice 1 point the melting point of h₂o is 0 degrees celsius. this is the same as its: boiling point vaporization point fusion point freezing point 7 multiple choice 1 point what is it called when a solid turns directly into a gas? sublimation vaporization melting fusion

Explanation:

• For question 6: The melting point of a substance is the temperature at which it changes from solid to liquid. The freezing point is the temperature at which it changes from liquid to solid. For water ($H_2O$), the melting - point and freezing - point are the same, 0 degrees Celsius.
• For question 7: Sublimation is the process by which a solid directly changes into a gas without passing through the liquid state.

Answer:

1. D. Freezing point
2. A. Sublimation