17.the formation of steam above a pot of water is an example of
condensation.
evaporation.
freezing.
melting.
18.if you were to pour into a container materials in all three phases of matter, which phase would most quickly spread out to fill the container?
solid
liquid
gas
evaporated

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

mark him as !

it's filtration, but this is an assumption so my apologies if i got this