Elements, Compounds, Mixtures

Front

How many total atoms are in K₂SO₄?

Back

7

Front

A substance made of only one type of atom is called —

Back

an element

Front

This diagram represents a _____ (pure substance that is a compound, mixture of elements, pure substance that is an element, mixture of compounds).

Back

mixture of elements

Front

Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?

Back

mixture

Front

How many types of atoms are in K₂SO₄?

Back

3

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 a mixture?

Back

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

Front

Give an example of a homogeneous mixture.

Back

Saltwater.

Front

Give an example of a heterogeneous mixture.

Back

Salad.