Focus On Physical Science: California Grade 8

Chapter 10: Chemistry of Living Systems

Math Practice

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1.
If a C-C-O bond in ethanol is 109°, how many of these angles are in ethanol?
A)0
B)1
C)2
D)3
2.
If an H-C-O bond in ethanol is 109°, how many of these angles are in ethanol?
A)2
B)0
C)1
D)3
3.
If an H-C=O bond in methanoic acid is 120°, how many of these angles are in methanoic acid?
A)3
B)0
C)2
D)1
4.
If an H-C-OH bond in methanoic acid is 120°, how many of these angles are in methanoic acid?
A)1
B)0
C)2
D)3
5.
If an O=C-O bond in methanoic acid is 120°, how many of these angles are in methanoic acid?
A)2
B)0
C)1
D)3
6.
If an H-C=C bond in propene is 120°, how many of these angles are in propene?
A)0
B)1
C)2
D)3
7.
If a C-C=C bond in propene is 120°, how many of these angles are in propene?
A)3
B)0
C)2
D)1
8.
If a C=C-H bond in propene is 120°, how many of these angles are in propene?
A)2
B)0
C)1
D)3
9.
If a =CH2 bond in propene is 120°, how many of these angles are in propene?
A)1
B)0
C)2
D)3
10.
If a H-C-H bond in the methyl group of propene is 109°, how many of these angles are in propene?
A)3
B)0
C)1
D)2
Grade 8
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