Chemistry: Elements, Compounds, and Mixtures Quiz

What is an alloy?

• A solution made by dissolving a substance in a liquid

• A pure metal

• A mixture of two or more elements

• A compound formed by joining atoms of different elements

What happens when elements form compounds?

• They become less stable

• They display their own special properties

• They become less reactive

• They no longer display their own special properties

What is the composition of a mixture?

• Only one substance

• Two or more separate substances

• A compound and a solvent

• A solute and a solvent

What is bronze?

• A pure metal

• An element

• A compound formed by joining atoms of different elements

• An alloy which is a mixture of copper and tin

Why are alloys generally much stronger than pure metals?

• Because they have a lower density

• Because the particles of the second substance disrupt the organized layers

• Because they have more organized layers

• Because they have fewer particles

What is a solution?

• A mixture of metals

• A solute mixed with a solvent in such a way that the solute can no longer be seen

• A compound formed by joining atoms of different elements

• A mixture of two or more separate substances

What is the universal solvent?

• Ethanol

• Propanone

• Water

• White spirit

Which solvent is used to remove nail varnish and grease?

• Water

• Propanone

• Ethanol

• White spirit

What does not take part in a chemical reaction when it dissolves in a solvent?

• Compound

• Solvent

• Solute

• Element

Which substance dissolves in water but not in ethanol?

• Propanone

• White sugar

• White spirit

• Salt