SCOPE4 8th Grade NC LangBend 2

Front

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

Back

Molecule

Front

What is a solid material whose atoms, molecules, or ions are arranged in an ordered pattern?

Back

Crystal

Front

What is the smallest particle of an element?

Back

Atom

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 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 significance of the atomic number?

Back

The atomic number indicates the number of protons in the nucleus of an atom and determines the element's identity.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it remains constant.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.