Unit 2 Test

What is this chart called?

• Periodic Table

• Chart of Elements

• Elemental Guide

• Periodic Elements Chart

What makes elements special?

• their color

• their size

• their smell

• they can not be broken down into any simpler element

The smallest piece of a compound that still has the properties of that compound is a(n)

Example: ONE water ___________

• element

• atom

• mixture

• molecule

How many ATOMS of oxygen are in CO₂

• 1

• 2

• 0

• not enough information

How many ATOMS of hydrogen are in NaOH

• 1

• 2

• 0

• not enough information

The definition of density is

• the amount of liquid in a solid

• the amount of mass in a certain volume

• the amount of volume in a certain mass

• the amount of gas in a solid container

This state of matter has particles moving the slowest

• solid

• liquid

• gas

• plasma

This state of mater has indefinite shape, but a definite volume

• solid

• liquid

• gas

• plasma

Iron Rusting

• Physical Change

• Chemical Change

Burning a piece of wood

• physical change

• chemical change