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Chemical Reactions & Changes quiz (5,6,7)
Contributed by: Ruble
1.Nails rusting is an example of a chemical change.
True
 False
2.
Which of the following is NOT true about elements?
Make up matter on earth but NOT in space
They are pure substances
 Are located on the periodic table
Represented by a chemical symbol
3.


Mrs. Ruble was doing a demonstration in class. She

began boiling a beaker of water on a hot plate. Over

a period of 5 minutes, students observed steam

rising from the beaker and the level of water in the

beaker had reduced from 500mL to 350mL. This is

evidence of:

No change has occurred
 A change in the state of matter
A chemical change
An oxidation/reduction reaction
4.
During this experiment, two white solids were
combined in a bag.  A red liquid was then added to
them.  All of the chemicals began fizzing and 
creating gas.  The white solids turned into a yellow 
foam and became very warm to the touch.  The title
of this lab was:
Sunset in a Bag (Chemical Reactions with Calcium    Chloride, Baking soda, and Phenol Red)
The Cooking Lab
Chemical Reactions with Sodium and Water
Chemical Reactions with Baking Soda and Vinegar
Read the text and decide which chemical reaction experiment is beingdescribed:
5.
During this experiment, ammonium thyocianate and 
barium hydroxide were added together in a flask.
A stopper was placed on top of the flask and the two
chemicals were mixed together.  As they mixed, the 
two solids became a liquid, produced a gas, and
became very cold.  The title of this lab was:
Chemical Reactions with Cold Liquids
The Barium Hydroxide Change
Chemical Reactions with White Flakey Solids
Freezer Flask
Read the text and decided which chemical reaction experiment is beingdescribed.
6.Mrs. Davis made some Kool-aid at home last weekend.As she mixed the Kool-aid, she noticed the water changed colors from clear to red.  Since the water onlychanged colors because she added Kool-aid, Mrs. Davis knows:
a chemical reaction happened
she does not want red kool-aid anymore
the water has changed into a brand new     substance
a chemical reaction did NOT happen
7."N" is the chemical symbol for which element?
Carbon
Nylon
Nitrogen
Helium
8.Salt contains the elements sodium and chlorine.The chemical symbol for these elements is:
Fe and Ti
Sm and Cn
So and Ce
Na and Cl
9.Which of the following is NOT an element:
Titanium
Sulfur
Plastic
Hydrogen
10.Which of the following is NOT an example of a chemical reaction?
breaking into pieces
temperature change
creating light 
gas is produced
11.Which of the following IS an example of a chemical reaction?
Energy change
Unexpected color change
Bubbles or fizzing
All of the above
12.How many chemical symbols (elements) are represented in the folowing formula?
        HNCaAgOMgPbCuZn
 11
7
15
9
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