Chapter 3
What is the correct formula for copper(II) phosphate? Cu2PO4 CU3(PO4)2 CU2PO3 CU(PO4)2 CU(PO3)2
CU3(PO4)2
Which of the following ionic compounds is least likely to be correct? NH4Cl Ba(OH)2 Na2SO4 Ca2NO3 Cu(CN)2
Ca2NO3
What is the formula of the ionic compound formed by calcium and selenium? CaSe Ca2Se CaSe2 Ca3Se CaSe3
CaSe
What is the name of ClO-? Hypochlorite Chlorate Chlorite Perchlorate Perchlorite
Hypochlorite
What is the chemical formula for diiodine pentaoxide? I2O5 IO5 2IO5 I5O2
I2O5
What is the formula formed from K+ and O2-? K3O2 K2O K2O3 KO2
K2O
Which of these compounds is most likely to be ionic? KF CCl4 CS4 CO2 ICl
KF
Which of the following is an ionic compound? H2S NH3 I2 KI CCl4
KI
What is the formula of Potassium Permanganate? KMnO3 KMnO4 K2MnO4 K(MnO4)2
KMnO4
Which of these compounds in most likely to be covalent? Rb2S SrCl2 CS2 CaO MgI2
CS2
What types of elements undergo covalent bonding? A nonmetal and a metal Two nonmetals
Two nonmetals
Which of the following is a substance? Air Tap water Sea water Water Toothpaste
Water
Determine the charge of X in X2S +2 +1 -1 -2
+1
Determine the charge of X in XO +2 +1 -1 -2
+2
Determine the charge of X in the compound XCl2 +2 +1 -1 -2
+2
Determine the charge of X in NaX +2 +1 -1 -2
-1
Determine the charge of the unknown ion X in AlX3 +2 +1 -1 -2
-1
Determine the charge of X in Mg3X2 +2 +3 -3 -2
-3
What types of elements undergo ionic bonding? Two metals A nonmetal and a metal Two nonmetals
A nonmetal and a metal
Which of these compounds is most likely to be ionic? NCl3 BaCl2 CO SO2 SF4
BaCl2
Which of the following oxoanions of bromine is called the bromate ion? BrO3- BrO3 2- BrO4 2- BrO2- BrO-
BrO3-
Which of the following is the empirical formula for hexane, C6H14 (talking) C12H28 C6H14 C3H7
C3H7
Which of the following is a molecular formula for a compound with a empirical formula of CH? C2H6 C3H9 C4H10 C6H6 None
C6H6
What is the common name for HClO3 Hydrocloric acid Chloroform Hydrocloric trichloride Chlorous acid Chloric acid
Chloric acid
Which of the following exists as a diatonic molecule in the elemental state? Li Ne Cl Cu
Cl
Most likely to form an ionic compound Cl I Al K Cl Mg C S Al Mg
Cl Mg
Which of the following is a covalent compound? Na2O CaCl2 Cl2O CsCl Al2O3
Cl2O
Which of these examples is a physical property A. Corrosiveness of sulfuric acid B. Toxicity of cyanide C. Flammability of gasoline D. Neutralization of stomach acid with an antacid E. Lead becomes a liquid when heated to 601° C
E
The chemical formula for iron(II) nitrate is Fe2(NO3)3 Ir(NO2)2 Fe(NO3)2 Fe(NO2)2
Fe(NO3)2
What is the formula of ferric oxide? FeO Fe2O FeO3 Fe2O5 Fe2O3
Fe2O3
If a liquid contains a percent sugar and a percent water, what is it called? Compound Homogenous mixture Heterogenous mixture
Homogenous mixture
Determine the formula of the compound formed from Mg2+ and P3- Mg3P2 MgP Mg2P3 Mg P2
Mg3P2
The formula for magnesium sulfate is MgS MgSO4 MgSO3
MgSO4
What is the formula for the permaganate ion? KMnO4 is the potassium permaganate non-ion
MnO4-
The formula for sodium sulfide is Na S Na S2 Na2 S
Na2 S
Which of the following elements exists as a diatomic molecule in its elemental state? O He Mg Xe
O
Which of these pairs would be most likely to form an ionic bond? P and Br Cu and K C and O O and Zn Al and Rb
O and Zn
What is the formula of lead(II) oxide? PbO PbO2 Pb2O PbO4 Pb2O3
PbO
What is the name of PCl3? Phosphorus Chloride Phosphoric Chloride Phosphorus Trichlorate Phosphorus Trichloride
Phosphorus Trichloride
Which of these compounds is most likely to be covalent? KF CaCl2 SF4 Al2O3 CaSO4
SF4
Which of these compounds is most likely to be ionic? GaAs SrBr2 NO2 CBr4 H2O
SrBr2
Lewis dot structure: Symbol Number Dots Plus/minus
Symbol/Number/Plus/Minus
What is the name of P4S10? Phosphorus sulfide Phosphorus decasulfide Tetraphosphorus decasulfide Phosphorus sulfide
Tetra/deca
What is the name of P4Se3? Phosphorus Selenide Phosphorus triselenide Tetraphosphorus selenide Tetraphosphorus triselenide
Tetra/tri
