Download Class Presentation – Naming and Formula Writing

Do Now …
Date: October 31, 2016
Objective: Name binary ionic compounds.
Add ionic charges to your Periodic Table:
Quick practice …
Classify as ionic or covalent:
CaCl2
H2O
KI
NaCl
Ca2+
Ionic compounds = Metal and a NonMetal
Covalent compounds = NonMetal and a NonMetal
October 31, 2016
Today:
Intro to Naming and Practice –
Binary Ionic Compounds
HW: Naming Worksheet: Set A – B
Quiz tomorrow (short)
Metal, Metalloid, or Non-Metal?
H
Ca
Si
Al
B
Cu
All about ions.
When an atom loses or gains electrons,
ions are formed.
Na 
Na+ + e-
Cl + e-

Cl-
Na
Cl
Na+
Ion Formation
Cl-
http://library.tedankara.k12.tr/chemistry/vol1/redox/trans53.htm
Cations
Cations have a positive charge.
Their name does not change.
Ca2+
calcium ion
Li1+
lithium ion
Al3+
aluminum ion
Think
+ion
ca
Anions
Anions have a negative charge.
Their name ends in –ide.
S2-
sulfide ion
F1-
fluoride ion
P3-
phosphide ion
O2-
oxide ion
Think
a-n-ion
a negative ion
Practice
What will the charge (or oxidation number)
be for the ions of:
Ca
+2
S
-2
Ne
Zero or No Charge
Se
Ba
O
-2
+2
-2
Ionic Compounds
Metal + Nonmetal
Key concept:
- charge must balance (net charge = 0)
--------------------------
Naming Binary Ionic Compounds
1. Is it ionic or molecular (covalent)?
CaCl2
Ionic
(metal + nonmetal)
Naming Binary Ionic Compounds
2. Is the metal a transition metal?
CaCl2
Naming Binary Ionic Compounds
3. Write the cation name …
CaCl2
calcium
Naming Binary Ionic Compounds
4. … followed by the anion. The anion
should have the –ide ending.
CaCl2
calcium chloride
Naming Binary Ionic Compounds
Try this one.
LiBr
lithium bromide
Naming Binary Ionic Compounds
Another.
MgF2
magnesium fluoride
Naming Binary Ionic Compounds
Practice
BaS
barium sulfide
Na2S
sodium sulfide
KCl
potassium chloride
AlF3
aluminum fluoride
Practice
Practice Set A and
B on worksheet.
Practice with Ions
What will the charge (or oxidation number)
be for the ions of:
Na
+1
K
+1
He
Zero or No Charge
Al
Mg
O
+3
+2
-2
Don’t be like this cat…
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Do Now …
Date: November 1, 2016
Objective: Name binary ionic compounds
containing transition metals.
Name or write chemical formula:
CaCl2
KI
calcium bromide
magnesium sulfide
sodium sulfide
Na2O
Tuesday, November 1, 2016
Today:
Naming and Practice –
Binary Ionic Compounds
HW: Naming Worksheet: Set C - D
Do Now …
Na
Cl
Na+
Ion Formation
Cl-
http://library.tedankara.k12.tr/chemistry/vol1/redox/trans53.htm
Cations
Cations have a positive charge.
Their name does not change.
Ca2+
calcium ion
Li1+
lithium ion
Al3+
aluminum ion
Think
+ion
ca
Anions
Anions have a negative charge.
Their name ends in –ide.
S2-
sulfide ion
F1-
fluoride ion
P3-
phosphide ion
O2-
oxide ion
Think
a-n-ion
a negative ion
Practice with Ions
What will the charge (or oxidation number)
be for the ions of:
Na
+1
K
+1
He
Zero or No Charge
Al
Mg
O
+3
+2
-2
Homework Key:
1) magnesium sulfide
2) potassium bromide
3) barium nitride
4) aluminum oxide
5) sodium iodide
6) strontium fluoride
7) lithium sulfide
8) radium chloride
9) calcium oxide
10) aluminum phosphide
Set A Key: Binary Ionic
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
potassium sulfide
lithium bromide
strontium phosphide
barium chloride
sodium bromide
magnesium fluoride
sodium oxide
strontium sulfide
boron nitride
aluminum nitride
Homework Key:
1) MgO
2) LiBr
3) Ca3N2
4) Al2S3
5) KI
6) SrCl2
7) Na2S
8) RaBr2
9) MgS
10) AlN
Set B Key: Binary Ionic
If there’s a transition metal…
FeCl3
Transition metals can have more than one charge.
For example, the Fe ion can be either Fe2+ or Fe3+
If there’s a transition metal…
FeCl3
Find the charge on Cl. The Fe must be able to
balance this charge.
iron (III) chloride
If there’s a transition metal…
FeBr2
iron (II) bromide
If there’s a transition metal…
FeO
iron (II) oxide
If there’s a transition metal…
Fe2O3
iron (III) oxide
Remember…
The net charge for a neutral
compound must be zero.
I know, it’s hard work …
Practice …
CuCl2
copper (II) chloride
BaF2
barium fluoride
BeS
beryllium sulfide
AlBr3
aluminum bromide
MnO
manganese (II) oxide
HW - Set C Key
Set C Key: Formula to Name
(Transition Metals)
1)
2)
3)
4)
5)
6)
copper (II) sulfide
lead (IV) bromide
lead (II) nitride
iron (III) oxide
iron (II) iodide
tin (IV) phosphide
HW - Set D Key
Set D Key: Formula to Name
(Transition Metals)
1)
2)
3)
4)
5)
6)
FeCl2
Cu2S
PbI4
SnF2
Hg2Br2
SnO
Do Now …
Date: November 2, 2016
Objective: Name molecular compounds.
Name or write chemical formula:
FeCl2
FeCl3
iron (II) bromide
lead (II) sulfide
copper (II) oxide
Wednesday- November 2, 2016
Today:
W-Up, Computer Lab, Activity: Naming
Ternary Compounds
HW: Complete WS: Set E – F
Ionic or Molecular?
NH3
H2O
MgCl2
Na2SO4
KI
C6H11O12
C2H6
N2
Molecular Compounds
nonmetal bonded to nonmetal
CO2
H 2O
N 2 O5
Molecular Compounds
Use prefixes to show number of atoms
of each element.
CO2
carbon dioxide
H 2O
dihydrogen monoxide
N 2 O5
dinitrogen pentoxide
Prefixes
mono = 1
di = 2
tri = 3
…
Note: CO is carbon monoxide, not
monocarbon monooxide
Prefixes Practice
SF6 - sulfur hexafluoride
boron trifluoride - BF3
dinitrogen tetraoxide - N2O4
silicon dioxide - SiO2
Cl2O7 - dichlorine heptaoxide
SiS2 - silicon disulfide
K3N -
potassium nitride
---
Yesterday …
Learned to name binary ionic compounds
when given the chemical formula or name.
Remember …
The charges on the ions are the key.
Net Charge
In neutral compounds
the net charge is zero.
The charges on the individual
atoms will add up to zero.
So…
calcium fluoride
Charge on a calcium ion is +2
Charge on a fluorine ion is -1
So the formula is CaF2
.
And …
Iron (II) iodide
Charge on a iron (II) ion is +2
Charge on a iodine ion is -1
So the formula is
FeI2
.
Try these …
barium sulfide
cesium fluoride
calcium oxide
copper (I) oxide
iron (III) oxide
BaS
CsF
CaO
Cu2O
Fe2O3
Name the following compounds…
1. copper (II) sulfate
2. CaBr2
3. FeCl2
4. BF3
calcium bromide
iron (II) chloride
boron trifloride
5. barium nitride
6. chloride ion
7. Na+
CuSO4
Ba3N2
Cl-
sodium ion
– we’ll learn more next week
----------------------------------- ----------------------------------
Do Now …
Date: November 3, 2016
Objective: Name ternary compounds.
Thursday, November 2, 2016
Today:
Computer Lab: Naming Practice, Notes
& Practice
Date: November 3, 2016
Objective: Name chemical compounds.
Copy and name:
CuCl2
copper (II) chloride
BaF2
barium fluoride
BeS
beryllium sulfide
AlBr3
aluminum bromide
MnO
manganese (II) oxide
Ternary Ionic Compounds
Ternary ionic compounds have
three or more different elements.
Usually made up of a metal
attached to a polyatomic ion.
Ternary Ionic Compounds
You will be given a list of
polyatomic ions to use in
class and on tests.
Polyatomic Ions
Cyanide ion: CN-
Nitrate ion: NO3-
A few more polyatomic ions …
Sulfate ion: SO42-
Phosphate ion: PO43-
-ate vs. -ite
Nitrate Ion
Sulfate Ion
Nitrite Ion
Sulfite Ion
-ate vs. -ite
Remember:
-ate is greater:
SO42- is sulfate
-ite is just a bite.
SO32- is sulfite
-ate has one more O than -ite
Naming Ternary Compounds
magnesium sulfate
magnesium has a +2 charge
the sulfate ion (SO42-) has a -2 charge
MgSO4
Naming Ternary Compounds
copper (II) nitrate
copper (II) has a 2+ charge
the nitrate ion (NO3-) has a 1- charge
Cu(NO3)2
A word about parentheses …
Cu(NO3)2
Number Cu atoms:
1
Number N atoms:
2
Number O atoms:
6
A word about parentheses …
Zn(OH)2
Number Zn atoms:
1
Number O atoms:
2
Number H atoms:
2
Ammonium Ion
+1
NH4
is the only positive ion we will use in
the class.
For example:
NH4NO3 = ammonium nitrate
NH4Cl = ammonium chloride
Confusing?
Try these …
aluminum nitrate
sodium sulfate
Al(NO3)3
Na2SO4
manganese (II) hydroxide
ammonium bromide
Mn(OH)2
NH4Br
Molecular Compounds
nonmetal bonded to nonmetal
CO2
H 2O
N 2 O5
Molecular Compounds
Use prefixes to show number of atoms
of each element.
CO2
carbon dioxide
H 2O
dihydrogen monoxide
N 2 O5
dinitrogen pentoxide
Prefixes
mono = 1
di = 2
tri = 3
…
Note: CO is carbon monoxide, not
monocarbon monooxide
Prefixes Practice
SF6 - sulfur hexafluoride
boron trifluoride - BF3
dinitrogen tetraoxide - N2O4
silicon dioxide - SiO2
Cl2O7 - dichlorine heptaoxide
SiS2 - silicon disulfide
K3N -
potassium nitride
Do Now …
Date: November 4, 2016
Objective: Name ionic and molecular compounds.
Write the name or chemical formula:
BaCl2
Fe2O3
Calcium fluoride
dihydrgon monoxide
CaSO4
iron(II) chloride
PCl3
Friday, November 4, 2016
Today:
W-Up, Lab: Ionic and Molecular
Compounds
HW:
Name the following compounds…
Sodium Nitride Na3N
Potassium Bromide KBr
Iron (III) Chloride
FeCl3
Phosphorous trichloride PCl3
Lab: Properties of Ionic and Molecular Bonds
Task: Using your notes and chemistry book design a procedure to
determine whether a compound has ionic bonds or covalent (also
called molecular) bonds.
Purpose:
Safety:
Procedure:
Observations:
Data Table (observations):
Conclusion: Be sure to include the letter of your unknown substances
(A, B, C, …), important observations, problems you needed to
overcome, any changes you made to your procedure, and a statement
about the nature of you unknown samples supported by evidence from
your observations and data.
HW
Set E Key: Formula to Name
1)
2)
3)
4)
5)
6)
aluminum phosphate
potassium nitrite
sodium hydrogen carbonate
calcium carbonate
magnesium hydroxide
sodium chromate
HW
Set F Key: Formula to Name
1)
2)
3)
4)
5)
6)
Ag2CO3
K2HPO4
Al(OH)3
NaHCO3
Ca(CH3COO)2
KMnO4
Name the following compounds…
SnS
tin (II) sulfide
PbS2
lead (IV) sulfide
calcium chloride CaCl2
NaI
sodium iodide
ZnF2
zinc fluoride
lithium oxide
BeO
Li2O
beryllium oxide
Name the following compounds…
1. magnesium sulfide
2. aluminum oxide
3. FeCl3
MgS
Al2O3
iron (III) chloride
4. MgF2 magnesium fluoride
5. sodium oxide Na2O
6. fluoride ion
F-
Diatomic Elements
H2
N2
O2
Cl2
Br2
I2
F2
In chemical equations, the
compound has the same name
as the element.
hydrogen + oxygen  water
is
H2 + O2  H2O
So for H, N, O, F, Cl, I, Br …
You could also say dihyrogen, dioxygen,
dinitrogen, …
Molecular Compounds
nonmetal bonded to nonmetal
CO2
H 2O
N 2 O5
Molecular Compounds
Use prefixes to show number of atoms
of each element.
CO2
carbon dioxide
H 2O
dihydrogen monoxide
N 2 O5
dinitrogen pentoxide
Prefixes
mono = 1
di = 2
tri = 3
…
Note: CO is carbon monoxide, not
monocarbon monooxide
Prefixes Practice
SF6 - sulfur hexafluoride
boron trifluoride - BF3
dinitrogen tetraoxide - N2O4
silicon dioxide - SiO2
Cl2O7 - dichlorine heptaoxide
SiS2 - silicon disulfide
K3N -
potassium nitride
-----------------------------------
Common Acids
HCl
hydrochloric acid
H2SO4
sulfuric acid
H3PO4
phosphoric acid
H2CO3
HC2H3O2
carbonic acid
acetic acid
Common Bases
NaOH
sodium hydroxide
KOH
potassium hydroxide
NH3
ammonia
-----------------------------------
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---------------------------------
-------Old Notes and Practice--------
Types of Compounds: Ionic
Ionic Compounds: Formula Unit
Smallest representative
unit of an ionic compound.
Formula
Unit of NaCl
Image from
http://cwx.prenhall.com/petrucci/medialib/
media_portfolio/text_images/FG03_03.JPG
H
Hydrogen
Ion Charge
+1
He
Helium
No Charge.
Li
Lithium
Charge
+1
Be
Beryllium
Charge
+2
B
Boron
Charge
+3
C
Carbon
Charge
+4 or -4
N
Nitrogen
Charge
-3
O
Oxygen
Charge
-2
F
Fluorine
Charge
-1
Ne
Neon
No Charge.
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