Pure Substances and Mixtures

Front

A column on the periodic table is called a _____________.

Back

group

Front

The chemical symbol for Nitrogen is _____________.

Back

N

Front

Group 15 on the periodic table is called _______________.

Back

The Nitrogen Group

Front

___________ are the smallest unit of an element that maintains the properties of that element.

Back

Atoms

Front

A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

Back

pure substance

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.

Front

What are the two types of mixtures?

Back

Homogeneous and heterogeneous mixtures.