Chapter 5: Compounds & Mixtures REVIEW

Front

What occurs when atoms of one or more substances rearrange to form one or more new substances?

Back

A chemical reaction occurs.

Front

What is the term for two or more substances that have been mixed together (physically) not chemically combined?

Back

A mixture.

Front

What type of bond is formed when a metal chemically bonds with a nonmetal by sharing its valence electrons?

Back

A covalent bond.

Front

What is the type of mixture where the substances are not evenly mixed?

Back

Heterogeneous mixtures.

Front

What is a group of atoms that are held together by chemical bonds and act as a unit?

Back

A molecule.

Front

What is a substance made of two or more different elements that are chemically bonded together?

Back

A compound.

Front

What is the process called when a solid changes directly into a gas without becoming a liquid?

Back

Sublimation.

Front

What is the term for a mixture that has a uniform composition throughout?

Back

A homogeneous mixture.

Front

What is the smallest unit of an element that retains the properties of that element?

Back

An atom.

Front

What type of bond is formed when one atom transfers electrons to another atom?

Back

An ionic bond.