Naming Covalent Compounds Answers

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Which prefix is needed when naming SO3?

A
tri-
B
penta-
C
mono-
D
di-
2
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What is the chemical formula for carbon tetrafluoride?

A
C4F
B
CF
C
CF4
D
C4F4
3

What is the subscript for nitrogen in hydrazine, N2H4?

A
2
B
N
C
H
D
4
4

Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements in the compound. What tool will she use next?

A
a scale
B
a balance
C
the prefix chart
D
the periodic table
5

Sebastian wants to write the chemical formula for phosphorus tetraoxide. He identifies the chemical symbols as P and O. Which additional step will he take in his process?

A
identify the elements involved as potassium and oxygen
B
add a subscript of 4 after the O
C
write the chemical symbols, in order, as OP
D
use the prefix tetra before oxygen
6

Which refers to the chemical name of CO?

A
carbon monoxide
B
carbon oxide
C
monocarbon monoxide
D
monoxide carbon
7

This table shows covalent compounds being investigated by five scientists. Each scientist wants to give a chemical name to the compound.

Question illustration
A
Adele and Halley
B
Ethel and Kate
C
Kate and Audrey
D
Audrey and Ethel
8

How can a periodic table help a chemist write the chemical name of a compound from its chemical formula?

A
by determining the number of atoms
B
by identifying the elements
C
by determining the prefixes
D
by determining the subscripts
9

Ammonia is a covalent compound used in many cleaners. What is its chemical formula?

A
N2O
B
H2O
C
NH3
D
HO3
10

What is the chemical formula of water?

A
N2O
B
H2O
C
NH3
D
HO3

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Naming Covalent Compounds Answers — Roy Summer…