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#4. Compounds: Outcome A3
By Andrew Wilson
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Last updated about 1 year ago
12 questions
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2.5
1.3c
1
1.3c
1
1.3c
1
1.3c
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1.3c
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1.3c
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1.3d
Use the following picture for the next 5 questions
1
Question 8
8.
What is the name of the first element in the compound?
1.3c
1
1.3c
1
1.3c
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1
1.3c
1
Question 12
12.
Question 12: What is the state of this compound?
a. solid
b. liquid
c. gas
1.3c
Question 1
1.
Which of the following are true of compounds? (check off all the boxes that are correct)
They are atoms composed of molecules of two or more elements
They are molecules composed of atoms of two or more elements
They can be broken down into their elements
They cannot be broken down into their elements
Water is an example
Carbon dioxide is an example
Pure substances may consist of compounds
Question 2
2.
What does the subscript "g" in the following chemical equation tell us? H
2
O
(g)
Water is in liquid form
Water is in gaseous form
Water is in solid form
Question 3
3.
How many atoms are present in the following chemical equation? NaHCO
3
(s)
6
5
4
3
Question 4
4.
How many elements are present in one molecule of hydrogen peroxide, H
2
O
2
?
1
2
3
4
Question 5
5.
Which of the following elements are NOT present in freon-12, CCl
2
F
2
?
Carbon
Iodine
Chlorine
Fluorine
Question 6
6.
How many atoms of hydrogen are present in each glucose molecule (C
6
H
12
O
6
)?
1
2
6
12
Question 7
7.
In an investigation of the decomposition of water, a student observes that 2 gases are being formed. What are the gases?
water vapour and CO2 gas
hydrogen and oxygen
air and oxygen
Question 9
9.
What is the name of the second element in the compound?
Question 10
10.
How many different elements are in this compound?
1
2
3
4
5
Question 11
11.
Question 11: What is the TOTAL number of atoms in the compound?
1
2
3
4
5
