Chapter 9 Chemistry Test

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Correct answers on Ch. 9 Chem study guide.

What type of ions have names ending in -ide?

Only Anions

When Group 2A elements form ions, they...

lose two electrons

What is the correct name for the N3- ion?

Nitride 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 ...

Roman numeral following the name

Aluminum is a group 3A metal. Which ion does Al typically form?

Al3+

Which of the following correctly provides the name of the element, the symbol for the ion, and the name of the ion?

Copper, Cu+, cuprous ion

The nonmetals in Groups 6A and 7A...

Have a numerical charge that is found by subtracting 8 from the group number

What determines that an element is a metal?

it's position in the periodic table

What is the Stock name for chromic ion?

Chromium(III) ion

Which of the following is NOT a cation?

sulfate

In which of the following are the symbol and name for the ion given correctly?

OH-: hydroxide; O2-: oxide

Which of the following correctly provides the names and formulas of polyatomic ions?

Chromate: CrO4^2-; dichromate: Cr2O7^2-

An -ate or -ite at the end of a compound name usually indicates that the compound contains...

a polyatomic ion

Why are systematic names preferred over common names?

Common names do not provide information about the chemical composition of the compound

Which of the following compounds contains the Mn3+ ion?

Mn2O3

How are chemical formulas of binary ionic compounds generally written?

Cation on left, anion on right

Which of the following is true about the composition ionic compounds?

They are composed of anions and cations

Which of the following formulas represents an ionic compound?

BaI2

Which element, when combined with fluorine, would most likely form an ionic compound?

lithium

Which of the following shows correctly an ion pair and the ionic compound the two ions form?

Fe3+, O2-; Fe2O3

In which of the following are the formula of the ionic compound and the charge on the metal ion shown correctly?

ThO2, Th4+

Which of the following correctly represents an ion pair and the ionic compound the ions form?

Ca2-, F-, CaF2

Which of the following compounds contains the lead(II) ion?

PbO

Which set of chemical name and chemical formula for the same compound is correct?

Tin(IV) bromide, SnBr4

What is the correct formula for potassium sulfite?

K2SO3

Which set of chemical name and chemical formula for the same compound is correct?

Iron(III) phosphate, FePO4

What type of compound is CuSo4?

polyatomic ionic

Which polyatomic ion forms a neutral compound when combined with a group 1A monatomic ion in a 1:1 ratio?

nitrate

Sulfur hexafluoride is an example of a...

binary compound

Molecular compounds are usually...

composed of two or more nonmetallic elements

What is the ending for the names of all binary compounds, both ionic and molecular?

-ide

Which of the following correctly shows a prefix used in naming binary molecular compounds with its corresponding number?

nona-, 9

Which of the following is a binary molecular compound? (-two nonmetals)

PCl5

Which of the following formulas represents a molecular compound?

SO2

Consider a mystery compound having the formula MxTy. If the compound is not an acid, if it contains only two elements, and if M is not a metal, which of the following is true about the compound?

It is a binary molecular compound

Which of the following shows both the correct formula and correct name of an acid?

H3PO4, phosphoric acid

What is the name of H2SO3

Sulfurous acid

What is the formula for sulfurous acid?

H2SO3

What is the formula for phosphoric acid?

H3PO4

What is the formula for hydrosulfuric acid?

H2S

Which of the following are produced when a base is dissolved in water?

hydroxide ions

How are bases named?

like ionic compounds

Which of the following pairs of substances best illustrates the law of multiple proportions?

No and NO2

Select the correct formula for sulfur hexafluoride?

SF6

What is the correct name for the compound CoCl2?

Cobalt(II) chloride

Suppose you encounter a chemical formula with H as the cation. What do you know about this compound immediately?

It is an acid

What is the correct formula for barium chlorate?

Ba(ClO3)2

What is the correct formula for calcium dihydrogen phosphate?

Ca(H2PO4)2

What does an -ite or -ate ending in a polyatomic ion mean?

Oxygen is in the formula

Which of the following is the correct name for N2O5?

Dinitrogen Pentoxide

What is the correct name for Sn3(PO4)2?

Tin(II) phosphate

Write the charge of a chloride ion.

Cl-

What is the charge on the polyatomic ions nitrite and chlorite?

-1

What is the charge on the cation in CuSo4?

2+

What is the ionic charge on the zirconium ion in the ionic compound zirconium oxide, ZrO2?

4+

How many iron(II) ions combine with oxygen to form Iron(II) oxide?

1

Determine the subscript for ammonium in the chemical formula for ammonium dichromate?

(NH4)2CrO7

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