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