8.5 Basics Chemistry Review
Regular and Advanced
Regular Format
• 34 points
• 5 questions
– 2 drawing and filling in a descriptive chart
– 1 short answer providing evidence
– 2 matching
Advanced Format
• 39 points
• 9 questions
– 2 drawing and filling in a descriptive chart
– 5 short answer
• 1 providing evidence
• 4 examples
– 2 matching
Question 1
• Draw a diagram of what would happen if an
ice cube is melting in a beaker. Is thermal
energy removed or added to the solid?
Answer 1
• Draw a diagram of what would happen if an
ice cube is melting in a beaker. Is thermal
energy removed or added to the solid?
Thermal Energy (heat) is
Added
Question 2
• Is thermal energy (heat) added or removed
when water vapor CONDENSES onto a glass of
cold soda?
Answer 2
• Is thermal energy (heat) added or removed
when water vapor CONDENSES onto a glass of
cold soda?
• The water goes from a gas to a liquid so we
are removing heat (it gets colder)
Question 3
• Complete the following chart
State of Matter
Solid
Liquid
Gas
Particle
Movement
Particle Spacing
Question 3
• Complete the following chart
State of Matter
Particle
Movement
Particle Spacing
Solid
Vibrating
Fixed position
Liquid
Freely moving
Loose contact
Gas
Freely moving
No contact
Question 4
USE YOUR MYSTERY POWDER KEY TO HELP
• A mystery powder contains 2 unknown
samples. Based on the data below list the 2
powders and give at least 2 reasons why you
made that decision.
Test
Result
Visual
Crystal and powder
Vinegar
bubbles
Iodine
No reaction
Heat (Bunsen burner)
No reaction
Answer 4
• A mystery powder contains 2 unknown samples. Based on the data
below list the 2 powders and give at least 2 reasons why you made
that decision.
Test
Result
Visual
Crystal and powder
Vinegar
bubbles
Iodine
No reaction
Heat (Bunsen burner)
No reaction
• Powder 1- SALT 1) crystals present 2) No
reaction to iodine 3) no reaction to heat
• Powder 2- BAKING SODA 1) fine powder 2)
reaction to vinegar 3) no reaction to iodine
Question 5
USE YOUR MYSTERY POWDER KEY TO HELP
• A mystery powder contains 3 unknown
samples. Based on the data below list the 3
powders and give at least 2 reasons why you
made that decision.
Test
Result
Visual
Crystal and powder
Vinegar
No reaction
Iodine
Turns Black
Heat (Bunsen burner)
Smells like burnt toast
Answer 5
• A mystery powder contains 3 unknown samples. Based on
the data below list the 3 powders and give at least 2 reasons
why you made that decision.
Test
Result
Visual
Crystal and powder
Vinegar
No reaction
Iodine
Turns Black
Heat (Bunsen burner)
Smells like burnt toast
• Powder 1- SALT 1) crystal present 2) no reaction to vinegar
• Powder 2- FLOUR 1) powder 2) smells like burnt toast when
heat is added
• Powder 3- CORN STARCH 1) powder 2) reaction to iodine 3)
no reaction to vinegar
Question 6
• What is the difference between an element
and compound?
Answer 6
• What is the difference between an element
and compound?
• An element has only one type of atom.
• A compound is when atoms of 2 or more
elements chemically bind together (combine)
Question 7
• What is the difference between an
homogeneous mixture and heterogeneous
mixture?
Answer 7
• What is the difference between an homogeneous
mixture and heterogeneous mixture?
• A homogeneous mixture is a blend of
elements and compounds that is evenly
distributed. It is harder to break into its
individual pieces.
• A heterogeneous mixture is a blend of
elements and compounds that is unevenly
distributed. It is easier to break into its parts.
Question 8
• Identify each of the following as an element,
compound, heterogeneous mixture, or
homogeneous mixture.
a)
b)
c)
d)
e)
f)
g)
h)
Helium
Milk
Hydrochloric acid (HCl)
Snickers bar
A jar of just blue M&Ms
Sodium hydroxide (NaOH)
Copper
A bag of different flavors of Jolly Ranchers
Answer 8
• Identify each of the following as an element,
compound, heterogeneous mixture, or
homogeneous mixture.
a)
b)
c)
d)
e)
f)
g)
h)
Helium - element
Milk- homogeneous mixture
Hydrochloric acid (HCl) - compound
Snickers bar – heterogeneous mixture
A jar of just blue M&Ms – homogeneous mixture
Sodium hydroxide (NaOH) - compound
Copper - element
A bag of different flavors of Jolly Ranchers –
heterogeneous mixture
ADVANCED Question 9
• What is plasma?
ADVANCED Answer 9
• What is plasma? How is this
different from the gas state.
• The fourth state of matter made up
of free positive and negative atoms
(Aren’t bound to the nucleus) Gas
atoms are bound to their nucleus.
ADVANCED Question 10
• What are some examples of
plasma on the planet? In the
universe?
ADVANCED Answer 10
• What are some examples of plasma
on the planet? In the universe?
• Fluorescent lightbulbs
• Northern lights
• Ball of lightening
• Stars