Mixtures

Which of the following is an example of a heterogeneous mixture?

• a) Saltwater

• b) Air

• c) Granite

• d) Vinegar

Which type of mixture has a uniform composition throughout?

• a) Homogeneous mixture

• b) Heterogeneous mixture

• c) Compound

• d) Element

What is the main difference between a solution and a suspension?

• a) Solutions have larger particles than suspensions.

• b) Suspensions are homogeneous, while solutions are heterogeneous.

• Particles in solutions settle over time, while particles in suspensions do not.

• d) Solutions have particles that dissolve, while suspensions have particles that do not dissolve.

Which of the following is a pure substance?

• a) Saltwater

• b) Air

• c) Oxygen gas

• d) Soil

What is a pure substance composed of only one type of atom?

• a) Compound

• b) Element

• c) Mixture

• d) Solution

Which of the following is an example of a compound?

• a) Water

• b) Iron

• c) Oxygen gas

• d) Saltwater

How does a heterogeneous mixture differ from a homogeneous mixture?

• a) A heterogeneous mixture has a uniform composition, while a homogeneous mixture does not.

• b) A homogeneous mixture contains only one phase, while a heterogeneous mixture contains multiple phases.

• c) A homogeneous mixture has visible particles, while a heterogeneous mixture does not.

• d) A heterogeneous mixture can be separated by physical means, while a homogeneous mixture cannot.

What distinguishes a pure substance from a mixture?

• a) Pure substances can only exist in the solid state, while mixtures can exist in any state.

• b) Pure substances have a fixed composition, while mixtures can vary in composition.

• c) Pure substances are always compounds, while mixtures are always elements.

• d) Pure substances can only be separated by chemical means, while mixtures can be separated by physical means.

what type of mixture is granite ?

• a)Homogeneous Mixture

• b)Heterogeneous Mixture

• c)Solution

• d)Suspension

which of these is an non aqueous solution

• Acetone

• Sulfuryl chloride

• water

• Ethonal