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Drawing Lewis Dot Structures • Chemistry
Set 3 — Foundation
What is the Lewis dot structure for ext{H}_{2} ext{O}?
O with 2 pairs of dots and 2 Hs connected
O with 3 pairs of dots and 1 H connected
O with 1 pair of dots and 2 Hs connected
O with no dots and 3 Hs connected
How many valence electrons does ext{CCl}_{4} have?
28
24
20
16
Which of the following has a Lewis dot structure showing a triple bond?
ext{N}_{2}
ext{O}_{2}
ext{H}_{2} ext{O}
ext{CO}_{2}
What is the Lewis dot structure of ext{CH}_{4}?
C with 4 Hs connected
C with 2 Hs connected and 2 pairs of dots
C with 1 H connected and 3 pairs of dots
C with 3 Hs connected and 1 pair of dots
How many total valence electrons are in ext{NH}_{3}?
8
10
6
4
What is the correct Lewis dot structure for ext{Cl}_{2}?
Cl with 1 pair of dots and 1 Cl connected
Cl with 2 pairs of dots and 2 Cls connected
Cl with 3 pairs of dots and 1 Cl connected
Cl with 4 pairs of dots and 2 Cls connected
Which molecule has a central atom with 5 bonds in its Lewis structure?
ext{PCl}_{5}
ext{SF}_{6}
ext{NH}_{3}
ext{CO}_{2}
What is the total number of lone pairs in ext{O}_{2}?
2
4
0
1
How many hydrogen atoms are needed to complete the Lewis structure of ext{C}{2} ext{H}{6}?
6
4
2
8
What is the Lewis dot structure for ext{SO}_{2}?
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S with 1 double bond to O and 1 single bond to O
S with 2 double bonds to O
S with 2 single bonds to O
S with 1 bond to O and 1 pair of dots