SCOPE4 8th Grade NC LangBend 2

Front

What is a pure substance?

Back

A single substance with definite composition and properties.

Front

What is a chemical formula?

Back

A shorthand notation that uses chemical symbols and subscripts.

Front

What is a chemical symbol?

Back

A one or two letter notation used to represent an element.

Front

What is the simplest unit of a chemical compound that can exist?

Back

Molecule.

Front

What does a subscript in a chemical formula indicate?

Back

The number of a specific type of atom present.

Front

What is a mixture?

Back

A combination of two or more substances that retain their individual properties.

Front

What is an element?

Back

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

Front

What is a compound?

Back

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

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 the smallest unit of a compound.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.