Unit 1 Flashcard Review

Front

What is the correct atomic symbol for bromine?

Back

Br

Front

How many elements are in the compound C₂H₈O?

Back

3

Front

What is the chemical symbol for copper?

Back

Cu

Front

How many carbon atoms are in the formula 2Na₂CO₃?

Back

2

Front

What does the term 'element' refer to in chemistry?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is a mixture?

Back

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

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

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.

Front

What is the formula for calculating the number of atoms in a compound?

Back

Count the subscripts in the chemical formula.