Elements and Compounds

Front

Are both elements and compounds pure substances?

Back

Agree

Front

Does the chemical symbol of an element always match the element's name?

Back

Disagree

Front

Two or more different elements chemically combine to form compounds.

Back

Agree

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Do all compounds have a chemical formula?

Back

Agree

Tags

NGSS.MS-PS1-1

Front

Carbon, Ar, and Ne are examples of elements.

Back

Agree

Front

NaCl is an example of a compound that contains helium and oxygen atoms.

Back

Disagree

Tags

NGSS.MS-PS1-1

Front

Do compounds have properties different from the elements that make them up?

Back

Agree

Front

What is essential for life? Elements, Compounds, or Both?

Back

Both

Tags

NGSS.MS-LS2-3

Front

Represented by a unique chemical symbol

Back

Elements

Front

Can be broken down into a simpler substance: Elements, Compounds, Both

Back

Compounds