Pure Substances & Mixtures

The basic building blocks of matter are called

• atoms

• elements

• pure substances

• mixtures

Tags

NGSS.MS-PS1-1

A(n) ___________ is a substance that is made up of a single kind of atom.

• atom

• element

• pure substance

• compound

Elements and compounds are two types of

• mixtures

• colloids

• solvents

• pure substances

A(n) ______________ is a combination of substances that are combined physically but not chemically.

• mixture

• element

• pure substance

• compound

Which kind of mixture is a solution?

• homogenous

• heterogeneous

What kind of mixture is a suspension?

• homogeneous

• heterogeneous

What kind of mixture is a colloid?

• homogeneous

• heterogeneous

Fish give off the compound ammonia which has a pH above 7. To which class of compounds does ammonia belong?

• acid

• neutral

• base

What type of mixture is this salad dressing?

• suspension

• colloid

• solution

Pure substances are made up of a single type of particle and cannot be formed or broken down by physical changes. Which of the following statements is true?

• Water is a pure substance.

• Water is a mixture.

Tags

NGSS.MS-PS1-1