Chapter 2 Part 3 Molecules & Ions

Question 1

Two or more atoms joined together by a chemical bond are called?

Answer 1

Molecules

Question 2

Molecules that come in pairs are called?

Answer 2

Diatomic Molecules

H, N, O, F, Cl, Br, I - 7 diatomic Molecules

Question 3

A species that is charged when electrons are gained or lost are called

Answer 3

Ions

Question 4

A positively charged ion created bc electrons are _____ are called?

Answer 4

Electrons (E-) are LOST forming a positively charged CATION

Question 5

A negatively charged ion that is formed when electrons are _______ are called?

Answer 5

When electrons are GAINED, an ANION is formed

Question 6

Molecules made up of two atoms are called?

Answer 6

Diatomic Molecules

Question 7

Group 4 is halfway and elements in Group 4 will not form __________?

Answer 7

Ions

Question 8

The staircase is a group of elements called?

Answer 8

Metalloids

Question 9

How are elements grouped on the periodic table?

Answer 9

Metals on left
Semi-metals along the Metalloids staircase - 8 BAt on ends, 6 in middle
And non-metals to right of staircase

Question 10

Metalloids have properties of

Answer 10

Both metals and nonmetals

Question 11

2 kinds of chemical formulas are?

Answer 11

Molecular & Empirical

Question 13

Shows what elements make up a compound by using the chemical symbols?

Answer 13

Chemical formulas

Question 14

Shows the exact number of atoms of each element?

Answer 14

Molecular formula

Question 15

Shows which elements are present and the simplest whole number ratio of their atoms

Answer 15

Empirical formula

Question 16

What is the empirical formula for water and carbon dioxide?

Answer 16

H2O & CO2 - they are in their simplest whole number ratios

Question 17

2 ions, one that is positive and one that is negative, that reactive form a compound

Answer 17

Binary Ionic Compound

Question 18

Iron 2 =

Answer 18

Ferrous Fe2+

Question 19

Iron 3 =

Answer 19

Ferric Fe+3

Question 20

Copper 2
Copper

Answer 20

Cupric +2
Cuprous +1

Question 21

Cobalt 3+
Cobalt 2+

Answer 21

Cobaltic
Cobaltous

Question 22

Stannic
Stannous

Answer 22

Tin +4
Tin +2

Question 23

For charges remember

Answer 23

ic is greater than us

Question 24

Lead 2
Lead IV

Answer 24

Plumbous
Plumbic

Question 25

FeCl3

Answer 25

Ferric Chloride

Question 26

FeCl2

Answer 26

Ferrous Chloride

Question 27

This is called?

Answer 27

Ferrous Wheel

Question 28

Ions that contain many ions are called?

Answer 28

Polyatomic Ions Poly=many

Question 29

Sodium Nitrate is?

Answer 29

Na(NO3)

Question 30

Ate comes b4 ite

Answer 30

I ate the ite Ate has more oxygens than ite

Question 31

Hypo means?

Answer 31

Less 1 less oxygen for a O- charge just 1-

Question 32

Compounds that do not involve metals or ions are called?

Answer 32

Binary Covalent Compounds

Question 33

1 2 3 4 5 6 7 8 9 10

Answer 33

Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca

Question 34

N2O5

Answer 34

Dinitrogen PentOxide

Question 35

N3O7

Answer 35

TriNitrogen HeptOxide

Question 36

Prefixes are only used in what kind of compounds?

Answer 36

Covalent

Question 37

Acids always start with what letter?

Answer 37

H

Question 38

Polyatomic Ions -ic is _______ than -ous

Answer 38

-ic > -ous ic is greater than us

Question 39

HNO3 is? HNO2

Answer 39

Nitric Acid Nitrous Acid

Question 40

H2SO4 H2SO3

Answer 40

Sulfuric Acid Sulfurous Acid

Question 41

-ate becomes? -ite becomes?

Answer 41

—ate = -ic acid Is greater than -ite = -ous acid

Question 42

All bases contain

Answer 42

OH- Hydroxide Home base

Question 43

Sn(OH)4 is

Answer 43

Tin IV Hydroxide

Question 44

Ionic =

Answer 44

Metal + Non-Metal

Question 45

Covalent =

Answer 45

2 non-metals

Question 46

Practice Naming Compounds

Answer 46

Question 47

Practice 2

Answer 47