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Test Review Sheet

monatomic ion

consists of a single atom with a positive or negative charge

acid

produces a hydrogen ion when dissolved in water

cation

atom or group of atoms having a positive charge

law of definite proportions

In any chemical compound, the masses of elements are always in the same proportion by mass.

polyatomic ion

tightly-bound group of atoms that behaves as a unit and carries a net charge

base

produces a hydroxide ion when dissolved in water

anion

atom or group of atoms having a negative charge

law of multiple proportions

When two elements form more than one compound, the masses of one element that combine with the same mass of the other element are in the ratio of small, whole numbers.

binary compound

compound composed of two different element

Roman numeral following the name

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

Al ³⁺

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

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

The nonmetals of Groups 6A and 7A

Sulfate

Which of the following is NOT a cation?

OH⁻: hydroxide AND O²⁻:oxide

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

Chromate: CrO₄²⁻ AND Dichromate: Cr₂O₇²⁻

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

A polyatomic ion

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

Common names don't provide info about the chemical composition of the compound.

Why are systematic names preferred over common names?

Mn₂O₃

Which of the following compounds contains the Mn³⁺ ion?

cation on left, anion on right

How are chemical formulas of binary ionic compounds generally written?

They are composed of anions and cations.

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

BaI₂

Which of the following formulas represents an ionic compound?

lithium

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

Fe³⁺, O²⁻; Fe₂O₃

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

Ca²⁺, F⁻; CaF₂

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

stannic fluoride, SnF₄

In which of the following is the name and formula given correctly?

PbO

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

tin (IV) bromide, SnBr₄

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

K₂SO₃

What is the correct formula for potassium sulfite?

iron (III) phosphate, FePO₄

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

polyatomic ionic

What type of compound is CuSO₄?

nitrate

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

binary compound

Sulfur hexafluoride is an example of a

composed of two or more nonmetallic elements

Molecular compounds are usually

nonmetallic elements

Binary molecular compounds are made of two

prefixes

In naming a binary molecular compound, the number of atoms of each elements present in the molecule is indicated by

PCl₅

Which of the following is a binary molecular compound?

SO₂

Which of the following formulas represents a molecular compound?

It is a binary molecular compound.

Consider a mystery compound having the formula M₀T₀. 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?

hydrogen ions

When dissolved in water, acids produce

-ide

When naming acids, the prefix hydro- is used when the name of the acid anion ends in

H₃PO₄, phosphoric acid

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

sulfurous acid

What is the name of H₂SO₃?

-ous

When the name of an anion that is part of an acid ends in -ite, the acid name includes the suffix

H₂SO₃

What is the formula for sulfurous acid?

H₃PO₄

What is the formula for phosphoric acid?

H₂S

What is the formula for hydrosulfuric acid?

hydroxide ions

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

mass

In any chemical compound, the elements are always combined in the same proportion by

NO and NO₂

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

SF₆

Select the formula for sulfur hexafluoride.

cobalt (II) chloride

What is the correct name for the compound CoCl₂?

It is an acid.

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

Ca(H₂PO₄)₂

What is the correct formula for calcium dihydrogen phosphate?

Oxygen is in the formula.

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

5 Properties of Ionic Compounds

~non-metal and metal
~high boiling point
~high melting point
~conducts electricity when dissolved in water
~solid at room temp.

5 Properties of M. Compounds

~non-metals
~low melting point
~low boiling point
~doesn't conduct electricity when dissolved
~not solid at room temp.

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