A substance has a boiling point of 78 °C. Which of the following is true about the substance?

It will also change from a gas to a solid at 78 °C while the gas loses energy.
It will also change from a gas to a solid at 78 °C while the gas gains energy.
It will also change from a gas to a liquid at 78 °C while the gas loses energy.
It will also change from a gas to a liquid at 78 °C while the gas gains energy.

C; it will also change from a gas to a liquid at 78°C while the gas loses energy.

Explanation:

Took the test. If it boils at 78°C, then that means it will be either a liquid turning into a gas, or a gas turning into a liquid. If the gas loses energy, that means it is being cooled, so if a gas loses energy at 78°C, it will become a liquid.

i can confirm that C is correct

Explanation:

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i