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Physical Science, 5/e
Bill Tillery, Arizona State University

Compounds and Chemical Change

Questions



1

Use electron dot symbols in equations to predict the formulas of the ionic compounds formed between the following:
Li and F
Be and S
Li and O
Al and S
2

Name the following ionic compounds formed from variable-charge transition elements:
PbCl2
FeO
Cr2O3
PbO
3

Name the following polyatomic ions:
(C2H3O2)2
(HCO3)2
(SO4)22
(NO2)2
(MnO4)2
(CO3)22
4

Use the crossover technique to write formulas for the following compounds:
Aluminum hydroxide
Sodium phosphate
Copper(II) chloride
Ammonium sulfate
Sodium hydrogen carbonate
Cobalt(II) chloride
5

Write formulas for the following covalent compounds:
Silicon dioxide
Dihydrogen sulfide
Boron trifluoride
Dihydrogen dioxide
Carbon tetrafluoride
Nitrogen trihydride
6

Name the following covalent compounds:
N2O
SO2
SiC
PF5
SeCl6
N2O4
7

Predict if the bonds formed between the following pairs of elements will be ionic, polar covalent, or nonpolar covalent:
Si and C
Cl and Cl
S and O
Sr and F
O and H
K and F