AnswersIA-Chemistry A Survey of Chemistry AWriting and Balancing Chemical Equations

Writing and Balancing Chemical Equations Answers

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1
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Use the periodic table to select the chemical symbol for each element.The symbol for carbon is

A
C.
B
Ca.
C
Cm.
2
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The symbol for hydrogen is

A
H.
B
He.
C
Ho.
3

The symbol for nitrogen is

A
Ni.
B
Nd.
C
N.
4

The symbol for iron is

A
I.
B
Ir.
C
Fe.
5

The symbol for copper is

A
C.
B
Co.
C
Cu.
6

Select the description of each substance given by each chemical formula. One molecule of O2 is made of

A
one atom of oxygen.
B
one atom of osmium.
C
two atoms of oxygen.
7

The compound Al2O3 is made of

A
one atom of aluminum to two atoms of oxygen.
B
two atoms of aluminum to three atoms of oxygen.
C
one atom of aluminum, two atoms of iodine, and three atoms of oxygen.
8

The compound KOH is called

A
calcium oxygen hydride.
B
potassium hydroxide.
C
krypton hydroxyl.

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