One plus, two plus, three plus, NO Three minus, two minus, one minus, NO.
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Transcript of One plus, two plus, three plus, NO Three minus, two minus, one minus, NO.
One plus, two plus, three plus, NO
Three minus, two minus, one minus, NO
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Formulae of Ionic CompoundsFormulae of Ionic CompoundsWhat are the formulae for the ionic compounds formed from these reactants?
1.Magnesium + Chlorine
2.Aluminium + Bromine
3.Sodium + Oxygen4.Aluminium + Oxygen5.Sodium + Bromine6.Calcium + Oxygen
ANSWERSANSWERSWhat are the formulae for the ionic compounds formed from these reactants?
1.Magnesium + Chlorine
2.Aluminium + Bromine
3.Sodium + Oxygen
4.Aluminium + Oxygen
5. Sodium + Bromine
6. Calcium + Oxygen
Iron Man 2Iron Man 2
Please insert picture of Iron Man
http://www.youtube.com/watch?v=1B2A-GeYci0
SPOT THE MISTAKE!!!
Iron Man Iron Man 22
SPOT THE MISTAKE!!!
TASK:TASK: In iron man 2, Tony Stark is injected with ‘lithium dioxide’.
• What would the formula for lithium dioxide be?
• Why is this a mistake?
INSERT PICTURE OF IRON MAN
I know nothing
I know one thing
I know a few things
I know and can link my ideas together
I can link my ideas together
TASK:TASK: Make links between word A and B to help you remember which word matches with which.
Electrolysis
inert
cathode
anode
decompose
molten
ionic
covalent
metallic
reduction
oxidation
redox
brine
chlorine
sodium
ion
chloride
purification
copper
Electrolysis can be used to separate ionic substances.
Ionic substances contain positive metal ions and negative non-metal ions .
What is Electrolysis?
TASK:TASK:Draw the diagram
Na+ Cl-
The positive ions are attracted to the CATHODE (negative electrode)
The negative ions are attracted to the ANODE (positive electrode)
What is Electrolysis?
+
+
++
+ +-
--
-
-
--
What happens at the electrodes?
OOxidation
IIs
LLoss
RReduction
IIs
GGain
OILRIGOILRIG
Extraction processes
The ReactivitySeries
potassium
sodiumcalciummagnesium
aluminium
zinciron
copper
gold
(carbon)
Incr
easi
ng re
activ
ity
Metals above carbon must be extracted using electrolysis.
Metals below carbon can be extracted from the ore by reduction using carbon, coke, or charcoal.
Gold and silver often do not need to be extracted. They occur native.
The reactivity of a metal determines the method of extraction.
lead
silver
Ionic Half Equations
Al 3+ + 3 electrons(3 e-)
→ Al
NaCl → Na+ + Cl-
What would happen at the anode?
What would happen at the cathode?
• What is brine?
• What four elements are in brine?
The electrolysis of BRINE gives us some useful products
Venn Diagrams
Famous People
Austrians Horrible
AtomElement
CompoundMolecule
Ion
TASK:TASK: •Define the keywords below•Create a Venn diagram to show the similarities between these keywords. •Use the textbook to help you.
One type of element
No Charge
Multiple types of element
Charged
AtomAtomElementElement
CompoundCompoundIonIon
MoleculeMolecule
Atom
Molecule
Compound Element
Ion
I know nothing
I know one thing
I know a few things
I know and can link my ideas together
I can link my ideas together
Electrolysis
inert
cathode
anode
decompose
molten
ionic
covalent
metallic
reduction
oxidation
redox
brine
chlorine
sodium
ion
chloride
purification
copper