Pure Substances and Mixtures

Front

Elements can be classified as...

Back

all of the above (metals, nonmetals, metalloids)

Front

A mixture contains a variety of elements and compounds that are chemically combined. True or False?

Back

False

Front

A mixture that does not have uniform composition is called...

Back

heterogeneous

Front

What kinds of compounds contain carbon AND hydrogen?

Back

organic

Front

A mixture that has the same composition throughout is called...

Back

homogenous

Front

What is a pure substance?

Back

A material made of only one type of particle, which can be an element or a compound.

Front

What is a mixture?

Back

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

Front

Give an example of a heterogeneous mixture.

Back

Salad or a bowl of mixed nuts.

Front

Give an example of a homogeneous mixture.

Back

Saltwater or air.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.