MII 6 Pure Substances and Mixtures Test

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout. Examples include elements and compounds.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties. Examples include air and salad.

Front

What is the difference between a compound and a mixture?

Back

A compound is made up of two or more elements that are chemically bonded together, while a mixture is a physical combination of substances.

Front

What are the properties of compounds compared to their elements?

Back

The properties of a compound are different from the properties of the elements that make it up.

Front

What type of bond is formed when two atoms share electrons?

Back

Covalent bond.

Front

What is an example of a covalent compound?

Back

Water (H2O) is an example of a covalent compound.

Front

What is distillation used for?

Back

Distillation is used to separate mixtures based on differences in boiling points.

Front

What is evaporation?

Back

Evaporation is the process of turning from liquid into vapor, often used to separate a solid from a liquid.

Front

What is filtration?

Back

Filtration is a method used to separate solids from liquids or gases using a filter.

Front

What is chromatography?

Back

Chromatography is a technique used to separate mixtures based on the movement of different components through a medium.