Atom, Elements, and Compound Quiz
Check your mastery on this topic right away! Only takes 5 minutes and you surely do great on your exam.
Quiz Transcript
Atom, Elements, and Compound Quiz
Check your mastery on this topic right away! Only takes 5 minutes and you surely do great on your exam.
Which of these is the smallest particle?
An atom
A molecule
A speck of dust
1 / 10
Which of these is the correct symbol for magnesium?
MG
mg
Mg
2 / 10
Which statement about atoms and molecule is correct?
Elements always exist as separate atoms
Elements always exist as pairs of atoms called molecules
Elements and compounds can exist as molecules
3 / 10
How many different atoms are there in a compound?
One
Always two
Two or more
4 / 10
Approximately, how many elements are there?
100
40
1,000,000
5 / 10
Which one is a compound?
Water
Hydrogen
Helium
6 / 10
Which of these contains two carbon atoms and six hydrogen atoms?
CH4
C2H6
C2H4
7 / 10
Which of these contains four hydrogen atoms?
CH3OH
H2O
H2O2
8 / 10
How many atoms are there in total in a molecule of sulfur trioxide, SO3?
Two
Three
Four
9 / 10
Why does air not have a definite formula?
It contains different amounts of water depending on where you are
It depends on the temperature
It is not a compound
10 / 10
It is okay.
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