Honors Chem Midterm Review

Liquid state DOES NOT HAVE which of the following properties?

• definite shape

• definite volume

• flows easily

• very hard to compress

Tags

NGSS.MS-PS1-4

1. Homogeneous mixtures are _______

• called solutions.

• only liquids.

• have more than one phase.

• pure substances.

What is true of compounds?

• only be separated by a chemical reaction.

• have variable composition

• always have combined physical properties of its elements

• can be separated by physical change

Tags

NGSS.MS-PS1-5

Which is chemical property?

• ability to burn

• boiling point

• hardness

• color

Tags

NGSS.MS-PS1-1

All atoms of the same element have the same number of

• protons

• neutrons

• electrons

• protons and neutrons

The number of neutrons can always be calculated by

• subtracting atomic number by mass number

• adding atomic number to the mass number

• adding number of electrons and protons

• divide mass number by 2

Which is NOT TRUE about atoms?

• Electrons have more mass than protons.

• Electrons have a negative charge.

• The neutron is found in the nucleus of an atom.

• Neutrons have mass but not charge.

The maximum number of electrons that can occupy the second energy level is ____

• 8

• 2

• 18

• 32

Which of the following elements is a metal?

• Na

• N

• F

• Br

Tags

NGSS.HS-PS1-1

1. The alkali metals do not include

• Mg

• Cs

• Li

• Na