Chemical Reactions

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Chemical Reactions
Review Game
Rules
• Lab Table Teams 1-6
• One representative from each lab table
will come to a buzzer to receive a
question on the board
• Each correct response results in 1
point
Rules Cont.
• Incorrect answer:
Same question goes
to any other person remaining that did
not buzz in before - awarded 1 point
• Next question will go to another set of
lab table representatives
• Outside talking amongst lab tables
during a round results in deduction of
point
Rules Cont.
• Allow me to read the question fully
before responding
• First response - only response (cannot
change answer)
Question 1
• What is the definition of a reactant?
Question 2
• You freeze a bucket of water into a
solid block of ice. What type of change
is this?
Question 3
• How can a chemical reaction seem to
gain or lose mass?
Question 4
• What happens to the atoms of the
reactants during a chemical reaction?
Question 5
• What are the 3 physical factors in which
to increase the rate of a chemical
reaction?
Question 6
• You combine 2 elements, sodium (Na)
and chlorine (Cl), to make sodium
chloride (NaCl). What type of chemical
reaction is this?
• 2Na + Cl
2
---> 2NaCl
Question 7
• If you ignite methane, what type of
chemical reaction is this?
Question 8
• What are the products of all combustion
chemical reactions?
• extra point = what is the reactant of all
combustion reactions?
Question 9
• If you have 1 complex reactant, and it
breaks apart into 2 or more simple
products, what type of chemical
reaction is this?
Question 10
• Finish the following statement:
Matter
cannot be _________ nor __________.
Question 11
• How can you tell if a chemical reaction
has produced a gas?
Question 12
• What happens to the bonds of the
reactants at the beginning of a chemical
reaction?
Question 13
• You mix vinegar with baking soda and it
begins to bubble. What is the chemical
reaction producing?
• extra point = what type of compound
is produced
Question 14
• What happens to the bonds of the
products at the end of a chemical
reaction?
Question 15
• You mix 2 liquids and a white, solid
product is formed. What is the
evidence of a chemical reaction?
Question 16
• A chemical reaction starts at a
o
10
o
24
temperature of
C then ends at
C. Is this an exothermic or endothermic
chemical reaction?
Question 17
• How will the mass of the reactants
compare to the mass of the products in
a chemical reaction?
Question 18
• Is energy absorbed or released in an
exothermic reaction?
Question 19
• What rule is missing from the Law of
Conservation of Mass below?
• Matter cannot be created nor
destroyed. Atoms are re-arranged in
chemical reactions
• Reactions that seem to gain or lose
mass involve reactions with gases in
the air
•?
Question 20
• What is the chemical factor that you can
add to a reaction to increase its rate?
Question 21
• You have a solid reactant, and break it
apart into smaller pieces before adding
it to a second reactant to make the
reaction go faster. What factor did you
alter to the solid reactant to increase
the rate of the reaction?
Question 22
• In the lab in which you added chalk and
hydrochloric acid (HCl), you decided to
add more HCl to the reaction to make it
go quicker. What factor did you alter to
the HCl to increase the rate of the
chemical reaction?
Question 23
• What is the special feature of a
catalyst during a chemical reaction?
Question 24
• You burn a pile of wood while camping.
What type of change is this?
Question 25
• What is the definition of a product?
Question 26
• The speed at which molecules in a
chemical move and collide with each
other refers to its what?
Question 27
• How can you increase the surface area
of a reactant in order to increase the
rate of a chemical reaction?
Question 28
• If you are increasing the amount of
molecules present in a reactant, what
factor are you increasing to increase
the rate of the chemical reaction?
Question 29
• How are the atoms of the reactants
forming the product(s) during a
chemical reaction?
Question 30
• Is energy released or absorbed in an
endothermic chemical reaction?
Question 31
• 2 clear liquids are mixed together and
the product is a pink liquid. What is the
evidence of a chemical reaction?
Question 32
• Before a chemical reaction, you
measure the masses of your 2
reactants. The first reactant is 100 g
and the second reactant is 250 g. What
should be the mass of the product after
the chemical reaction?
Question 33
• A chemical reaction starts at a
o
24
o
10
temperature of
C then ends at
C. Is this an exothermic or endothermic
chemical reaction?
Question 34
• Both exothermic and endothermic
chemical reactions show what type of
evidence of a chemical reaction?
Question 35
• Are combustion chemical reactions
exothermic or endothermic chemical
reactions?
Question 36
• Are decomposition reactions examples
of exothermic or endothermic chemical
reactions?
Bonus Question
• The following general equation
represents a chemical reaction...
• AB ---> A + B
• If this was an endothermic reaction,
where would the majority of the energy
be found in the reaction?
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