Flashcardizz: Elements and Compounds

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Tags

NGSS.MS-PS1-1

Front

Give an example of an element.

Back

Hydrogen (H) is an example of an element.

Front

Give an example of a compound.

Back

Carbon dioxide (CO2) is an example of a compound.

Tags

NGSS.MS-PS1-1

Front

What distinguishes a compound from an element?

Back

Compounds are combinations of two or more elements, while elements consist of only one type of atom.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Tags

NGSS.MS-PS1-1

Front

What does the subscript in a chemical formula indicate?

Back

The subscript indicates the number of atoms of the element in the molecule.

Tags

NGSS.MS-PS1-1

Front

Is NaCl an element or a compound?

Back

NaCl (sodium chloride) is a compound.

Front

What is the main difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound has a fixed composition and properties.

Front

Can compounds be broken down into simpler substances?

Back

Yes, compounds can be broken down into simpler substances through chemical reactions.

Tags

NGSS.MS-PS1-2