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Compounds And Elements
Test Description: Compounds and elements
Instructions: Answer all questions to get your test result.
1) NaCl is the chemical formula for which of the following?
A
Water
B
Table Salt
C
Potassium Chloride
D
Carbon Dioxide
2) H2O is the chemical formula for which of the following?
A
Potassium Chloride
B
Carbon Dioxide
C
Table Salt
D
Water
3) Au is an element. We know this because...
A
None of the above
B
It has one capital letter
C
there are two letters
D
That is false. It's a compound.
4) What is CO2 classified as?
A
element
B
compound
5) O4 is classified as?
A
compound
B
element
6) When determining if something is an element or a compound, the easiest thing to do is what?
A
Count the total amount of letters
B
There is no difference between an element and compound.
C
Look for more than one capital letter.
D
Look for numbers
7) In O4, the 4 tells you what?
A
How many atoms of an element are in the molecule.
B
How many different elements there are.
C
How many electrons there are.
D
How many compounds there are.
8) C6H12O6 is the chemical formula for glucose. How many elements make up glucose?
A
3
B
24
C
12
D
6
9) The chemical formula for chalk is CaCO3. How many elements make up chalk?
A
3
B
5
C
1
D
4
10) The chemical formula for baking soda is NaHCO3. How many elements make up baking soda?
A
8
B
3
C
5
D
4
*select an answer for all questions
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