Solutions

What do air, milk, soil, and brass have in common?

• They are all compounds

• They are all mixtures

• They are all solutions

• They are all elements

Which of the following is NOT a component of air?

• Nitrogen

• Oxygen

• Lactose

• Carbon Dioxide

What makes a mixture different from a chemical compound?

• Mixtures have chemically combined components

• All mixtures are in a liquid state

• Mixtures cannot be separated into their components

• The components in a mixture do not chemically react with each other

What characteristic of a mixture is illustrated by making tea with different amounts of sugar and milk?

• Its color and taste depend on the proportion of the components

• Its components react chemically

• Its chemical reactivity

• Its boiling point

Which of the following is a homogeneous mixture?

• Soil

• A bowl of mixed nuts

• Muddy water

• Steel

What type of mixture is brass?

• A homogeneous mixture

• An element

• A compound

• A heterogeneous mixture

Which of the following mixtures is NOT a solution?

• Sugar in water

• Salt in water

• Mud in water

• Carbon dioxide in soft drinks

Why can't we see the individual components in a homogeneous mixture?

• Because they are too small

• Because they are in a gaseous state

• Because their composition and properties are uniform throughout

• Because they react chemically

Can solutions exist in states other than liquid?

• No, solutions are always liquid

• Yes, but only as gases

• Yes, in gas, liquid, and solid states

• Yes, but only in solid state

Why does salt not dissolve in oil?

• Because salt is hydrophobic

• The text does not provide an answer

• Because oil is a compound

• Because salt and oil chemically react