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:
2+ CaCl2 H2O KI NaCl Ca
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 Na+ Ion Formation
Cl Cl-
http://library.tedankara.k12.tr/chemistry/vol1/redox/trans53.htm Cations
Cations have a positive charge. Their name does not change.
Think Ca2+ calcium ion ca ion Li1+ lithium ion + Al3+ aluminum ion Anions
Anions have a negative charge. Their name ends in –ide.
Think S2- sulfide ion a-n-ion F1- fluoride ion a negative ion P3- phosphide ion O2- oxide ion Practice
What will the charge (or oxidation number) be for the ions of:
Ca +2
S -2 Ne Zero or No Charge
Se -2
Ba +2
O -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
aluminum fluoride AlF3 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 +3
Mg +2
O -2 Don’t be like this cat… ------Do Now …
Date: November 1, 2016
Objective: Name binary ionic compounds containing transition metals.
Name or write chemical formula:
CaCl2 KI magnesium sulfide Na2O
calcium bromide sodium sulfide Tuesday, November 1, 2016 Today: Naming and Practice – Binary Ionic Compounds
HW: Naming Worksheet: Set C - D Do Now … Na Na+ Ion Formation
Cl Cl-
http://library.tedankara.k12.tr/chemistry/vol1/redox/trans53.htm Cations
Cations have a positive charge. Their name does not change.
Think Ca2+ calcium ion ca ion Li1+ lithium ion + Al3+ aluminum ion Anions
Anions have a negative charge. Their name ends in –ide.
Think S2- sulfide ion a-n-ion F1- fluoride ion a negative ion P3- phosphide ion O2- oxide 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 +3
Mg +2
O -2 Homework Key: Set A Key: Binary Ionic
1) magnesium sulfide 11) potassium sulfide 2) potassium bromide 12) lithium bromide 3) barium nitride 13) strontium phosphide 4) aluminum oxide 14) barium chloride 5) sodium iodide 15) sodium bromide 6) strontium fluoride 16) magnesium fluoride 7) lithium sulfide 17) sodium oxide 8) radium chloride 18) strontium sulfide 9) calcium oxide 19) boron nitride 10) aluminum phosphide 20) aluminum nitride Homework Key: Set B Key: Binary Ionic
1) MgO 2) LiBr
3) Ca3N2 4) Al2S3 5) KI
6) SrCl2 7) Na2S 8) RaBr2 9) MgS 10) AlN 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 …
copper (II) chloride CuCl2
barium fluoride BaF2 BeS beryllium sulfide
AlBr3 aluminum bromide
MnO manganese (II) oxide HW - Set C Key Set C Key: Formula to Name (Transition Metals) 1) copper (II) sulfide 2) lead (IV) bromide 3) lead (II) nitride 4) iron (III) oxide 5) iron (II) iodide 6) tin (IV) phosphide HW - Set D Key Set D Key: Formula to Name (Transition Metals)
1) FeCl2 2) Cu2S 3) PbI4 4) SnF2 5) Hg2Br2 6) SnO
Do Now …
Date: November 2, 2016
Objective: Name molecular compounds.
Name or write chemical formula:
FeCl2 FeCl3 lead (II) sulfide
iron (II) bromide 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
H2O
N2O5 Molecular Compounds
Use prefixes to show number of atoms of each element.
CO2 carbon dioxide
H2O dihydrogen monoxide
N2O5 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 BaS cesium fluoride CsF calcium oxide CaO
copper (I) oxide Cu2O
iron (III) oxide Fe2O3 Name the following compounds…
1. copper (II) sulfate CuSO4
2. CaBr2 calcium bromide
3. FeCl2 iron (II) chloride
4. BF3 boron trifloride – we’ll learn more next week
5. barium nitride Ba3N2 6. chloride ion Cl- 7. Na+ sodium ion ------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:
copper (II) chloride CuCl2
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 …
2- Sulfate ion: SO4
3- Phosphate ion: PO4 -ate vs. -ite
Nitrate Ion Nitrite Ion
Sulfate Ion Sulfite Ion -ate vs. -ite
Remember:
2- -ate is greater: SO4 is sulfate
2- -ite is just a bite. SO3 is sulfite
-ate has one more O than -ite Naming Ternary Compounds
magnesium sulfate
magnesium has a +2 charge
2- the sulfate ion (SO4 ) 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 Al(NO3)3
sodium sulfate Na2SO4
manganese (II) hydroxide Mn(OH)2
ammonium bromide NH4Br Molecular Compounds
nonmetal bonded to nonmetal
CO2
H2O
N2O5 Molecular Compounds
Use prefixes to show number of atoms of each element.
CO2 carbon dioxide
H2O dihydrogen monoxide
N2O5 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 CaSO4 PCl3
Calcium fluoride iron(II) chloride
dihydrgon monoxide 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) aluminum phosphate 2) potassium nitrite 3) sodium hydrogen carbonate 4) calcium carbonate 5) magnesium hydroxide 6) sodium chromate HW
Set F Key: Formula to Name
1) Ag2CO3 2) K2HPO4 3) Al(OH)3 4) NaHCO3 5) Ca(CH3COO)2 6) KMnO4 Name the following compounds…
SnS tin (II) sulfide
PbS2 lead (IV) sulfide
calcium chloride CaCl2 NaI sodium iodide
ZnF2 zinc fluoride
lithium oxide Li2O BeO beryllium oxide
Name the following compounds…
1. magnesium sulfide MgS
2. aluminum oxide Al2O3
3. FeCl3 iron (III) chloride
4. MgF2 magnesium fluoride
5. sodium oxide Na2O 6. fluoride ion F-
Diatomic Elements
H2 In chemical equations, the
N2 compound has the same name as the element. O2
Cl2 hydrogen + oxygen water Br2 is I2 H + O H O F2 2 2 2 So for H, N, O, F, Cl, I, Br …
You could also say dihyrogen, dioxygen, dinitrogen, … Molecular Compounds
nonmetal bonded to nonmetal
CO2
H2O
N2O5 Molecular Compounds
Use prefixes to show number of atoms of each element.
CO2 carbon dioxide
H2O dihydrogen monoxide
N2O5 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 carbonic acid
HC2H3O2 acetic acid Common Bases
NaOH sodium hydroxide KOH potassium hydroxide
NH3 ammonia ------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. ---