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Element Vs Compound
Test Description: Element Compound
Instructions: Answer all questions to get your test result.
1) Which of the following is an element?
A
H2O
B
C
C
NaCl
D
CO2
2) Which of the following is a compound?
A
Na
B
Co
C
CO2
D
Cl
3) How many elements are in CH4?
A
3
B
2
C
4
D
1
4) Which of the following is an element?
A
Water
B
Salt
C
Carbon Dioxide
D
Hydrogen
5) Which of the following is a compound?
A
Oxygen
B
Sodium
C
Water
D
Hydrogen
6) An element is represented by:
A
1 capital letter
B
2 or more Capital Letters
7) A compound is represented by:
A
1 Capital letter
B
2 or more capital letters
8) An element is represented by
A
Two or more Colors
B
One color
9) A compound is represented by:
A
One Color
B
Two or More Colors
10) In the formula H20:
A
There are 2 hydrogen atoms and 1 oxygen atom
B
There are 1 Hydrogen atom and 2 oxygen atoms
C
There are 2 hydrogen atoms and Zero Oxygen atoms
D
There are the same number of Hydrogen and Oxygen Atoms
11) Ca is an
A
Element
B
Compound
12) Pb3 is an
A
Compound
B
Element
13) H3 is an
A
Element
B
Compound
14) NaCl is an
A
element
B
compound
15) Represented by two or more colors
A
compound
B
both
C
none of these answers
D
element
16) Represented by One single color
A
radiation
B
S=D/T
C
element
D
compound
17) The small number in a molecule that tells you the number of atoms of each element is called the
A
compound
B
nucleus
C
element
D
subscript
18) Which of the following answer choices is a compound?
A
CO2
B
Co
C
O3
D
Xe
19) Which of the following answer choices is an element
A
NaCl
B
C6H12O6
C
Pb3
D
H2O
20) How many elements are in the compound SiO2? (count capitals)
A
4
B
2
C
3
D
1
*select an answer for all questions
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