8 Chem Intro Review

Front

What is a molecule?

Back

A molecule is a particle formed when two or more atoms come together as one.

Front

Is ammonia (NH3) an element, compound, or mixture?

Back

Ammonia (NH3) is a compound.

Front

What best represents an element?

Back

An element is a substance that consists of only one type of atom.

Front

What do we call a substance composed of atoms of a singular type?

Back

An element.

Front

Which statement is accurate?

Back

All compounds are also molecules.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is a compound?

Back

A compound is a substance formed when two or more different types of atoms bond together.

Front

What is a pure substance?

Back

A pure substance is a material made of only one type of particle, either an element or a compound.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed from a chemical combination of two or more different elements.

Front

What is an example of an element?

Back

An example of an element is oxygen (O).