All compounds are made up of multiple elements combined chemically.

• True

• False

Tags

NGSS.MS-PS1-1

The smallest particle of an element that maintains the properties of that element is an atom.

• True

• False

Tags

NGSS.MS-PS1-1

In a chemical change, the molecules involved undergo a rearrangement of their atoms.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Heterogeneous mixtures have uniform composition throughout.

• True

• False

Carbon, mercury, salt, and calcium are all examples of elements.

• True

• False

A mixture can be separated using physical methods.

• True

• False

Brittleness is defined as the tendency of a material to stretch without breaking.

• True

• False

The states of matter are determined by the arrangement and motion of particles.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Seawater is classified as a homogeneous mixture.

• True

• False

Intermolecular forces are responsible for chemical bonding between atoms.

• True

• False