Module 5

Question 1

Ions

Answer 1

Atoms / Groups of atoms that have gained or lost a electron (Net positive or net negative charge)

Question 2

Cations (Ion)

Answer 2

A positively charged Ion (Lost electrons)

Question 3

Anions

Answer 3

Negatively charged Ion (Gained electrons)

Question 4

Monatomic Ions

Answer 4

When a single atom gained or lost a electron
Ex. Hydrogen

Question 5

Binary Ionic Compound

Answer 5

When a metal atom combines with a nonmetal
Metal atom transfers the electron
Metals are Cations , Non-Metals are Anions

Question 6

Chemical formula of Binary Ionic compounds

Answer 6

Must be neutral overall (Positive = Negative)
Add however many of the atom you need till they are balanced
Ex Al = -2, O = +3 , Al3O2 is the formula

Question 7

Determining Ion Charges

Answer 7

Transition metals very in charge
Comparing it to a Known charge is the easiest way to figure it out
Ex FeCl3, Clorine has a charge -1 , Iron (Fe) would have a charge of +3 to match the amount of Chlorine

Question 8

Polyatomic Ions

Answer 8

Bounded atoms that have a net charge (+ or -)
Most are anions
NH4^+ is one of the only cations

Question 9

Chemical formulas of Ionic compounds with polyatomic ions

Answer 9

Use the lest amount to balance out the charges
Enclose the Polyatomic in parentheses
Write subscript outside parentheses

Question 10

Ionic Compound Name

Answer 10

There are two ways to go about naming them based on if they are
Polyatomic (set charge) or Monatomic
(Constant / variable)

Question 11

Monatomic metal cations naming (Constant)

Answer 11

Take the element in group 1 / 2 + ion
Hydrogen Ion etc

Question 12

Monatomic metal cations with variable

Answer 12

Metal ions from groups 3 to 12
Use the element name + Roman numeral to indicate charge

Question 13

Monatomic Anions

Answer 13

Groups 13 - 17, non metal. They have a constant charge
Use the element name + change ending to -ide

Question 14

Polyatomic Anions Name

Answer 14

Blunt memorize , all In the same series have the same charge
There is 4 naming conventions
Per_ate (Halogens with 4 Oxygen),
Hypo_ite, _ate, _ite

Question 15

CLO4 ^ -1

Answer 15

Perchlorate

Question 16

CLO3 ^ -1

Answer 16

Chlorate

Question 17

CLO2 ^ -1

Answer 17

Chlorite

Question 18

CLO ^ -1

Answer 18

Hypochlorite

Question 19

BrO3 ^ -1

Answer 19

Bromate

Question 20

BrO2 ^ -1

Answer 20

Bromite

Question 21

BrO ^ -1

Answer 21

Hypobromite

Question 22

IO3 ^ -1

Answer 22

Iodate

Question 23

IO2 ^ - 1

Answer 23

Iodite

Question 24

IO ^ -1

Answer 24

Hypoiodite

Question 25

SO4 ^ -2

Answer 25

Sulfate

Question 26

SO3 ^ -2

Answer 26

Sulfite

Question 27

NO3 ^ -1

Answer 27

Nitrate

Question 28

NO2 ^ -1

Answer 28

Nitrite

Question 29

PO4 ^ -3

Answer 29

Phosphate

Question 30

PO3 ^ -3

Answer 30

Phosphite

Question 31

CO3 ^ -2

Answer 31

Carbonate

Question 32

C2 - H3 -O2 ^ -1

Answer 32

Acetate

Question 33

NH4 ^ +1

Answer 33

Ammonium

Question 34

Naming Ionic compound

Answer 34

Name the cation + Anion

Question 35

Naming Hydrates

Answer 35

Ionic Compound + (pre fix + hydrate)
Ex. CuSO4 : 5 H2O, Copper (I) Sulfate Pentahydrate

Question 36

Binary Acids Names

Answer 36

Contains a hydrogen and element from group 16 / 17
Hydro + Root of element + -ic + acid
Ex. HCL , HydroChlorIc Acid

Question 37

Oxyacids naming

Answer 37

Contains the polyatomic ions
Replace :
-ate ending with -ic
- ite ending with -ous

Question 38

Compound name

Answer 38

Determine if Ionic or Covalent
Ionic = Name cation + Anion , Cation + hydrate
Covalent :
(Non acid) , use prefixes
Acid , follow binary or oxyacid names

Question 39

Avocados number

Answer 39

6.022 x 10 ^ 23 units per mole

Question 40

Atoms in compound

Answer 40

Find moles in compound , multiple it by avocados number