Question

multiple choice 3 points one property of a gas is that its molecules spread out to fill their container. which of the following best illustrates this property of gases? a teachers perfume can be detected at the back of the classroom. rain puddles evaporate more quickly when the sun comes out. water is produced when hydrogen gas is burned in oxygen gas. liquid oxygen is denser than gaseous oxygen. clear my selection

Explanation:

The question is about a property of gases where gas molecules spread out to fill their container. Among the options, a teacher's perfume being detected at the back of the classroom shows gas molecules spreading, which is a characteristic property of gases. Evaporation of rain - puddles is a phase - change process of water from liquid to gas, water production from hydrogen and oxygen is a chemical reaction, and the comparison of liquid and gaseous oxygen densities is about density, not the spreading property.

Answer:

A teacher's perfume can be detected at the back of the classroom.