SCOPE4 8th Grade NC LangBend 2

Front

What is formed when two or more elements are chemically bonded?

Back

A compound is formed when two or more elements are chemically bonded.

Tags

NGSS.MS-PS1-1

Front

What is a pure substance?

Back

A pure substance is a single substance with definite composition and properties.

Tags

NGSS.MS-PS1-4

Front

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

Back

A molecule is the simplest unit of a chemical compound that can exist.

Tags

NGSS.MS-PS1-1

Front

What is a chemical symbol?

Back

A chemical symbol is a one or two letter notation used to represent an element.

Front

What is a chemical formula?

Back

A chemical formula is a shorthand notation that uses chemical symbols and subscripts.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically bonded together.

Front

What is the significance of subscripts in a chemical formula?

Back

Subscripts in a chemical formula indicate the number of atoms of each element in a molecule.

Front

How do you determine the number of elements in a compound from its chemical formula?

Back

The number of different chemical symbols in the formula indicates the number of different elements in the compound.

Tags

NGSS.MS-PS1-1

Front

What is the law of conservation of mass in relation to chemical reactions?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Tags

NGSS.MS-PS1-5

Front

What is a mixture?

Back

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