Elements, Compounds, and Mixtures Review

Front

What does the subscript in a chemical formula indicate?

Back

The subscript indicates the number of atoms of the element in one molecule of the compound.

Front

What is the difference between an element and a compound?

Back

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

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties.

Front

What is an atom?

Back

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

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What are pure substances?

Back

Pure substances are materials made of only one type of particle, which can be elements or compounds.

Front

How can compounds be separated?

Back

Compounds can only be separated into their individual parts through chemical means, not physical means.

Front

What is the periodic table?

Back

The periodic table is a chart that organizes all known elements based on their atomic number and properties.

Front

What is the state of matter for most elements at room temperature?

Back

Most elements are solids at room temperature, but some are gases (like Helium) and one is a liquid (like Mercury).

Front

What happens to the properties of substances in a mixture?

Back

In a mixture, the individual substances retain their original properties.