Mixtures and Compounds

Which two are compounds rather than mixtures?

• Soil

• Ammonia

• Carbon Dioxide

• Air

• Coffee

Tags

NGSS.MS-PS1-1

Which two are mixtures rather than compounds?

• Wood

• Water

• Sugar

• Milk

• Salt

A student made a salad by tossing lettuce together with tomatoes and onions.

Which best classifies the salad?

• Mixture

• Compound

• an element

• a solution

Which best explains why something is a mixture?

• The ingredients are all in the solid phase.

• The ingredients can be separated by a physical process.

• The ingredients form new flavors when they are eaten together.

• The ingredients go through a chemical reaction once they are combined.

Which is a compound?

• pasta

• hydrogen

• cement

• methane

Tags

NGSS.MS-PS1-1

Which best explains why something is a compound?

• It is found in living organisms.

• It releases heat when it burns.

• It has parts that can be separated by physical means.

• It contains atoms of different elements bound together.

Tags

NGSS.MS-PS1-1

Which is a compound?

• propane

• biodiesel

• crude oil

• carbon

Tags

NGSS.MS-PS1-1

Which is a mixture?

• It always exists as a gas on Earth.

• It contains different types of atoms.

• It has different parts that are not bonded together.

• It has atoms with protons, neutrons, and electrons.

Which is a mixture?

• butane

• sodium

• carbon

• granite

Which best explains why something is a mixture?

• It exists as a solid, liquid, or gas.

• It is a natural substance found all over Earth.

• It contains different parts that can be physically separated.

• It has the same type and number of atoms in all its molecules.