Ch. 1 CH Chemistry Matters Study Guide

Front

What is a compound?

Back

A compound is a substance made up of two or more different kinds of atoms chemically combined.

Front

Which diagram represents a compound?

Back

Diagram (c) represents a compound.

Front

What is the chemical symbol for Nitrogen?

Back

N

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in the formation of new substances, while a physical change does not.

Front

Give an example of a chemical change.

Back

A copper penny turning greenish after a few years is an example of a chemical change.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a mixture?

Back

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

Front

What is a molecule?

Back

A molecule is the smallest unit of a chemical compound that retains its chemical properties.

Front

What is the purpose of a funnel in a laboratory?

Back

A funnel is used to channel liquids or fine-grained substances into containers with a small opening.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is made up of two or more atoms bonded together.