Quiz Chapt 4

Question 1

Ionic bonds

Answer 1

formed between a metal (cation) and non -metal (anion) and complete transfer of electrons

Question 2

What happens when ionic compounds are in a liquid state?

Answer 2

The atoms can move around and create electricity

Question 3

Nomenclature

Answer 3

A collection of rules for naming things

Question 4

Monoatomic ions

Answer 4

Ions that are formed from only one atom

Question 5

Polyatomic ions

Answer 5

electrically charged molecules

Question 6

Oxyanions

Answer 6

Polyatomic anions that contain one or more oxygen atoms

Question 7

How to identify polyatomic ion in a compound?

Answer 7

Put it in parantheses to show it does not separate

Question 8

Covalent bonds

Answer 8

two atoms share valence electrons and those shared electrons form the chemical bond

Question 9

IUPAC

Answer 9

International Union of Pure and Applied Chemistry; nomenclature

Question 10

term bis-, di-

Answer 10

indicates that there are two ions present

Question 11

IUPAC for CoPO₄

Answer 11

cobalt(III) phosphate

Question 12

Hydrate

Answer 12

When a compound is bonded to water molecules

Question 13

What are roman numerals used for?

Answer 13

To refer to something by its oxidation state (charge)

Question 14

Dodeca-

Answer 14

12

Question 15

Nona

Answer 15

9

Question 16

Deca

Answer 16

10

Question 17

Hepta

Answer 17

7

Question 18

Tetra

Answer 18

4

Question 19

when to use roman numerals

Answer 19

Used for metals that can form cations (positive ions) with different charges, such as some (but not all) transition metal cations

Question 20

Suffix for oxyanions

Answer 20

“ate” is used for the oxyanion with more oxygen atoms.
“ite” is used for the oxyanion with fewer oxygen atoms

Question 21

aq

Answer 21

acid

Question 22

ClO4

Answer 22

Perchloric

Question 23

Heteronuclear

Answer 23

Two different nuclei in a molecule

Question 24

Polar covalent bond

Answer 24

one atom in the bond has higher electronegativity than the other atom

Question 25

nonpolar covalent bond

Answer 25

the two atoms in the chemical bond have the same electronegativity

Question 26

Acetic acid

Answer 26

HC₂H₃O₂ or CH3COOH It's a very common organic acid used in vinegar

Question 27

Write the oxyacid for Phosphoric acid

Answer 27

H₃PO₄

Question 28

Nomenclature rules for ionic hydrated compounds

Answer 28

Ionic compound, prefix before hydrate

Question 29

Nomenclature rules for naming ionic compounds with fixed charges

Answer 29

Name of the metal first and then change the nonmetal’s end to “-ide”

Question 30

Nomenclature rules for ionic compounds with the metal having variable charges

Answer 30

Write the metal, write the charge in roman numerals in parentheses, change nonmetal ending to “-ide”

Question 31

Writing rules for ionic compounds with metals that have fixed charges

Answer 31

Metal symbol, Nonmetal symbol, determine the charges, balance the charges, write subscripts to show the number of ions

Question 32

Writing rules for ionic compounds with metals that have variable charges

Answer 32

write down cation symbol, write down symbol for anion, roman numeral gives charge of anion, balance the charges, write subscript for cation

Question 33

Writing rules for ionic hydrated compounds

Answer 33

write the ionic compound, add a dot to represent hydration, indicate number of water molecules in front of H2O

Question 34

Nomenclature rules for covalent compounds

Answer 34

First element name with prefix if needed, second element name with prefix and “-ide”

Question 35

Writing rules for covalent compounds

Answer 35

Use prefixes to determine subscripts

Question 36

Nomenclature rules for binary acids (hydrogen and one other nonmetal)

Answer 36

Prefix: hydro, root, suffix: “-ic acid”

Question 37

Formula writing rules for binary acids

Answer 37

Start with H, add symbol for nonmetal, determine subscript of H based on nonmetal charge to make it neutral

Question 38

Nomenclature rules for Oxyacids

Answer 38

If polyatomic ion ends in “-ate” then change it to “-ic acid” and if it’s “-ite” change it to “-ous acid”

Question 39

Formula writing rules for oxyacids

Answer 39

H, polyatomic ion, subscript for H is based on ion charge to make it neutral

Question 40

How to calculate electronegativity differences?

Answer 40

Electronegativity of Atom 1 - Atom 2

Question 41

What is the electronegativity range of a nonpolar covalent bond?

Answer 41

0-0.4

Question 42

What is the bond type of a polar covalent bond?

Answer 42

0.4-1.7

Question 43

What is the bond type of an ionic bond? or polar covalent? it depends

Answer 43

greater than 1.7

Question 44

Ammonium

Answer 44

NH4

Question 45

Methane

Answer 45

CH4