Midterm chemistry review chapter 9

the formula for silver oxide is

Ag2O

what is the correct formula for barium chlorate?

Ba(ClO3)2

what is the formula for the compound formed by the barium ion, Ba2+ and the hydroxide ion, OH-?

Ba(OH)2

the correct formula for calcium phosphate is

Ca3(PO4)2

what is the formula for chromium (III) oxide?

Cr2O3

what is the formula for chromium (III) sulfide?

Cr2S3

iron (II) chloride has the formula...

FeCl2

what is the formula for hydrosulfuric acid?

H2S

what is the formula for sulfurous acid?

H2SO3

what is the correct formula for potassium sulfite?

K2SO3

the correct formula for magnesium hydroxide is

Mg(OH)2

if the valence of element X is 2+ and valence of element Y is 3-, the formula of the compound formed is...

X3Y2

which of the following correctly represents an ion pair and the ionic compound the ions form a. Ca 2+, F-: CaF2 b. Na+, Cl-: NaCl2 c. Ba2+, O2-: Ba2O2 d. Pb 4+, O2-: Pb2O4

a. Ca 2+, F-: CaF2

Phosphoric acid has the formula... a. H3PO4 b. H3PO3 c. HPO3 d. H3PO2 e. none of these

a. H3PO4

what is the formula for compound formed by lead(II) ions and chromate ions, (CrO4)2-? a. PbCrO4 b. Pb2CrO4 c. Pb2(CrO4)3 d. Pb(CrO4)2

a. PbCrO4

which of the following compounds contains the lead (II) ion? a. PbO b. PbCl4 c. Pb2O d. Pb2S

a. PbO

the formula H2O2 is an example of... a. a molecular formula b. an empirical formula c. an ionic formula d. an organic formula

a. a molecular formula

name the compound Ni(ClO3)2 a. nickel chlorate b. nichel chloride c. nickel chlorite d. nickel peroxide

a. nickel chlorate

which formula is not correct a. Al2(SO4)3 b. BaHCO3 c. Ca(OH)2 d. NH4HSO4 e. LiH

b. BaHCO3

an example of a binary compound is... a. He b. H2O c. H2 d. H2SO4

b. H2O

the chemical formula for nickel (II) bromide is a. Ni2Br b. NiBr2 c. N2Br d. NBr2

b. NiBr2

Name the compound Fe(NO2)2 a. iron (II) nitrate b. iron (II) nitrite c. ferric nitrate d. ferrous nitride

b. iron (II) nitrite

Which set of chemical name and chemical formula for the same compound is correct? a. ammonium sulfite, (NH4)2 S b. iron (III) phosphate, FePO4 c. lithium carbonate, LiCo3 d. magnesium dichromate, MgCrO4

b. iron (III) phosphate, FePO4

suppose you encounter a chemical formula with H as the cation. what do you know about this compound immediately? a. it is a polyatomic ion b. it is an acid c. it is a base d. it has a 1+ charge

b. it is an acid

which of the following correctly shows a prefix used in naming binary molecular compounds with its corresponding number? a. deca, 7 b. nona, 9 c. hexa, 8 d. octa, 4

b. nona, 9

What type of ions have names ending in -ide? a. only cations b. only anions c. only metal ions d. only gaseous ions

b. only anions

What is the name of Sn3(PO4)4? a. stannous phosphate b. tin (IV) phosphate c. tin(III) phosphate d. tin (II) phosphate

b. tin (IV) phosphate

what is the formula for the compound formed by aluminum 3+ and the sulfate ion, (SO4)2-? a. AlSO4 b. Al2SO4 c. Al2(SO4)3 d. Al(SO4)3

c. Al2(SO4)3

which of the following shows both the correct formula and correct name of an acid? a. HClO2, chloric acid b. HNO2, hydronitrous acid c. H3PO4, phosphoric acid d. HI, iodic acid

c. H3PO4, phosphoric acid

which of the following compounds contains the Mn 3+ ion? a. MnS b. MnBr2 c. Mn2O3 d. MnO

c. Mn2O3

in which of the following are the symbol and name for both of the ions given correctly? a. (NH)4+ : ammonia. H+: hydride b. (C2H3O2)- :acetate (C2O4)-:oxalite c. OH-: hydroxide O 2-: oxide d. (PO3) 3- : phosphate (PO4)3- : phosphite

c. OH-: hydroxide O 2-: oxide

which of the following formulas represents a molecular compound? a. ZnO b. Xe c. SO2 d. BeF2

c. SO2

Sulfate, (SO4) 2-, is.. a. an acid b. a compound c. a radical (polyatomic ion) d. a salt

c. a radical (polyatomic ion)

When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a... a. prefix b. suffix c. a roman numeral following the name d. superscript after the name

c. a roman numeral following the name

when writing a chemical formula, the element with a positive valence... a. is written last b. needs no subscript c. is written first d. is placed in parentheses

c. is written first

Name the compound KClO3. a. potassium chloride b. potassium trioxychlorite c. potassium chlorate d. hypochlorite

c. potassium chlorate

which set of chemical name and chemical formula for the same compound is correct? a. iron (II) oxide, Fe2O3 b. aluminum fluorate, AlF3 c. tin (IV) bromide, SnBr4 d. potassium chloride, K2Cl2

c. tin (IV) bromide, SnBr4

Name the compound Zn3(PO4)2. a. zinc potassium oxide b. trizinc polyoxide c. zinc phosphate d. zinc phosphite

c. zinc phosphate

what is correct name for the compound CoCl2?

cobalt(II) chloride

what is the formula for the compound formed by calcium ions, Ca2+, and Chloride ions, Cl-? a. CaCl b. Ca2Cl c. CaCl3 d. CaCl2

d. CaCl2

which of the following shows correctly an ion pair and the ionic compound the two ions form? a. Sn4+, N3-: Sn4N3 b. Cu2+, O2-: Cu2O2 c. Cr3+, I-: CrI d. Fe3+, O2-: Fe2O3

d. Fe3+, O2-: Fe2O3

which of the following pairs of substance best illustrates the law of multiple proportions? a. H2 and O2 b. P2O5 and PH3 c. CaCl2 and CaBr2 d. NO and NO2

d. NO and NO2

select the correct formula for sulfur hexafluoride a. S2F6 b. F6SO3 c. F6S2 d. SF6

d. SF6

what is the formula for the compound formed by tin (IV) and the chromate ion, (CrO4)2-? a. Sn(CrO4)4 b. Sn2(CrO4)2 c. Sn2(CrO4)4 d. Sn(CrO4)2

d. Sn(CrO4)2

Name the compound CuCO3 a. copper (I) carbonate b. cupric trioxycarbide c. cuprous carbide d. copper (II) carbonate

d. copper (II) carbonate

which is the correct name for Fe2(SO4)3?

iron (III) sulfate

what type of compound is CuSO4?

polyatomic ion