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Quiz on topics 5.1-5.5
Quiz on topics 5.1-5.5
Last Attempt Details:
Due No due date
Points 6
Questions 18
Time Limit 15 Minutes
Allowed Attempts Unlimited
Time:
11 minutes
Current
Score:
4.17 out of
6
Kept Score:
4.17 out of
6
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Attempt
Time
Score
KEPT
Attempt 2
11 minutes
4.17 out of 6
LATEST
Attempt 2
11 minutes
4.17 out of 6
Attempt 1
9 minutes
4.22 out of 6
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Giáo Án
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Score for this attempt: 4.17 out of 6
Clise
Submitted Nov 17 at 4:36pm
This attempt took 11 minutes.
0.3 / 0.3 pts
Question 1
Which is the more reactive metal: zinc or copper.
SWB
copper
Help
zinc
LIVE CLASS
Incorrect
0 / 0.3 pts
Question 2
What was displaced in this reaction?
copper sulfate + iron --> iron sulfate + copper
iron
copper
sulfur
0.3 / 0.3 pts
Question 3
Match the terms and deUnitions.
molten
in liquid state
ores
rocks or mineral that contain a metal compound
0.34 / 0.34 pts
Question 4
When making the salt zinc chloride, when should you
stop heating the solution?
after 20-25 minutes
when you start to see crystals forming
Incorrect
0 / 0.34 pts
Question 5
How many atoms of hydrogen are present in one
particle of sulfuric acid?
1
Partial
0.17 / 0.34 pts
Question 6
Complete the word equation for the reaction between
copper oxide and nitric acid.
copper oxide + nitric acid --> Copper nitrate
+
Hydrogen
Answer 1:
copper nitrate
Answer 2:
Hydrogen
Incorrect
0 / 0.34 pts
Question 7
Which of the following salts is added to dyes to help
them stick to fabrics?
calcium sulfate
magnesium carbonate
sodium chloride
aluminium sulfate
0.34 / 0.34 pts
Question 8
Which element do all acids contain?
carbon
oxygen
nitrogen
sulfur
helium
hydrogen
0.34 / 0.34 pts
Question 9
The formula is KNO3. What is the name of the salt?
Potassium nitrate
0.34 / 0.34 pts
Question 10
Which of the following is commonly known as table
salt?
sodium chloride
silver nitrate
calcium carbonate
copper sulfate
Incorrect
0 / 0.34 pts
Question 11
What is the rock limestone made of?
calcium sulfate
calcium chloride
calcium carbonate
0.34 / 0.34 pts
Question 12
When you prepare a salt by neutralisation using
sodium hydroxide and hydrochloric acid, what is the
name of the salt produced?
Sodium chloride
0.34 / 0.34 pts
Question 13
Complete the symbol equation for the reaction
between magnesium carbonate and sulfuric acid.
[NOTE: It does not need to be balanced].
sulfuric acid + magnesium carbonate --> magnesium
sulfate + water + carbon dioxide
H
2SO4
Mg S
+ Mg CO
3
O 4
-->
+ H2O +
CO 2
Answer 1:
H
Answer 2:
CO
Answer 3:
S
Answer 4:
4
Answer 5:
2
0.34 / 0.34 pts
Question 14
Why would you use charcoal when preparing a salt by
neutralisation?
to make the solution heat more easily
to remove the colour of the universal indicator
solution
to make the solution safer
0.34 / 0.34 pts
Question 15
What word is used to describe a solution that is
neither acid nor alkali?
unbiased
neutral
normal
0.34 / 0.34 pts
Question 16
How many atoms of
hydrogen are
present in the
reactants?
How many atoms of
hydrogen are
present in the
products?
2
2
0.34 / 0.34 pts
Question 17
How many atoms of
magnesium are
present in the
reactants?
How many atoms of
magnesium are
present in the
products?
Incorrect
1
1
0 / 0.34 pts
Question 18
In chemical reactions, the elements you begin with are
the ones you end with. Nothing is added or taken
away.
What is this idea called?
the law of conservation of energy
the law of conservation of mass
Quiz Score: 4.17 out of 6
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