Unit 2 Test Review

Which of the following is a compound?

• Oxygen

• Water

• Iron

• Helium

Tags

NGSS.MS-PS1-1

What is the difference between a compound and a mixture?

• A) Compounds are chemically bonded, mixtures are not

• B) Mixtures are chemically bonded, compounds are not

• C) Both are chemically bonded

• D) Neither are chemically bonded.

Is table salt (NaCl) an element or a compound?

• element

• compound

Tags

NGSS.MS-PS1-1

__________ is another name for a homogeneous mixture.

• Liquid

• Substance

• Suspension

• Solution

Density is an ______ property.

• extensive

• intensive

What is the atomic number of Helium?

• 1

• 2

• 3

• 4

Which of the following is not a physical property?

• Color

• Odor

• Reactivity with oxygen

• Luster

What two subatomic particles make up the majority of the mass of the atom?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

Oxygen is a

• metal

• non metal

• halogen

• noble gas

Tags

NGSS.MS-PS1-1

Silver is a

• metal

• non metal

• halogen

• noble gas