elements compounds mixtures

Carbon and oxygen atoms can combine to form the gas called carbon dioxide.

• is a molecule, so it no longer has atoms

• is a molecule made of atoms

• has atoms, so it is not a molecule

• is a new kind of atom

Tags

NGSS.MS-PS1-1

The basic unit of matter is

• a mixture

• a substance

• an atom

• a compound

Tags

NGSS.MS-PS1-1

A substance that contains only one type of atom is a(n)

• compound

• element

• heterogeneous mixture

• homogeneous mixture

The smallest unit of an element that still has the properties of that element is?

• a substance

• a mixture

• a compound

• an atom

Tags

NGSS.MS-PS1-1

Which of these is a pure substance?

• bread

• table salt

• garden soil

• sea water

Tags

NGSS.MS-PS1-4

Which of these is not an example of a molecule?

• CH4

• C

• C6H12O6

• H2O

Tags

NGSS.MS-PS1-1

Which of these is a mixture?

• Uncooked chocolate chips and cookie dough blended together with a spoon.

• Distilled water

• A nugget of gold

• A molecule of Oxygen

Atoms of an element always have a certain number of

• neutrons

• protons

• electrons

• ions

Tags

NGSS.MS-PS1-1

The smallest unit of a compound that still has the properties of that compound is?

• an atom

• a molecule

• a mixture

• a substance

Tags

NGSS.MS-PS1-1

Two or more elements chemically combined:

• an atom

• a compound

• a mixture

• a pure substance

Tags

NGSS.MS-PS1-1