Chapter 5: Compounds & Mixtures REVIEW

Front

What is a molecule?

Back

A molecule is a group of atoms that are held together by chemical bonds and act as a unit.

Front

What does a subscript indicate in a chemical formula?

Back

A subscript is the number at the bottom right corner of the symbol, indicating the number of atoms of the element.

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting substances that exist before a chemical reaction begins.

Front

What type of bond is formed when a metal gives its valence electrons to a nonmetal?

Back

An ionic bond is formed when a metal chemically bonds with a nonmetal by giving its valence electrons.

Front

What is a chemical reaction?

Back

A chemical reaction occurs when atoms of one or more substances rearrange to form one or more new substances.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed by the chemical combination of elements, while a mixture is a physical combination of substances.

Front

What is a covalent bond?

Back

A covalent bond is formed when two nonmetals share electrons.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.