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Helium is a solid, liquid or gas ?
Gas
Many metals and minerals are pure substances in a ____ state
Solid
Copper is a _____
Metal
T/f : air is a mixture of different gases.
True
When we can see different components it’s called
Heterogeneous mixture
When we cannot see different components it’s called ?
Homogeneous mixtures
Pizza is an example of a
Heterogeneous mixture
Orange juice is an example of what mixture
Homogeneous
Cereal is an example of what type of mixture
Heterogeneous
Coffee is an example of what mixture ?
Homogeneous
Air is a example of
Homogeneous mixture
Chocolate chip cookies are an example of what mixture ?
Heterogeneous mixtures
What do we use to separate a salt water mixture ?
Evaporation
What do we use to separate a sand and water mixture?
Filtration
What do we use to separate an oil and water mixture ?
Decantation
True or false: table salt is a pure substance
True
