Elements and Compounds

Front

What is the smallest particle of any particular type of matter?

Back

Atom

Tags

NGSS.MS-PS1-1

Front

What term is used to describe a substance formed when two or more elements are chemically bonded together?

Back

Compound

Tags

NGSS.MS-PS1-1

Front

What is the chemical symbol for Chlorine?

Back

Cl

Front

Do the chemical symbols of elements always match the element's name?

Back

No, they do not always match.

Front

How many elements are represented in the compound Na2CO3?

Back

3

Tags

NGSS.MS-PS1-1

Front

What is the definition of an element?

Back

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

Front

What is the difference between an element and a compound?

Back

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

Front

What is the chemical formula for water?

Back

H2O

Tags

NGSS.MS-PS1-1

Front

What is the significance of the subscript in a chemical formula?

Back

The subscript indicates the number of atoms of the element present in the compound.

Front

What is a mixture?

Back

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