Joseph's quiz full of funtimes
What is ionic bonding
2 metals reacting
2 non metals reacting
Metals reacting with non metals
What happens in Ionic bonding
Transfer electrons
Share pair of electrons
Do negative ions have more protons or electrons
Protons
Electrons
What is covalent bonding
2 metals reacting
2 non metals reacting
Metals reacting with non metals
What happens in covalent bonding
Share pair of electrons
Transfer electrons
What happens after covalent bonding
Atoms become unstable
Atoms become stable
Stays the same
What is an electron
Positive charge
Negative charge
What is a molecule
1 atom
Collection of 2 or more atoms
A molecular substance
What does it mean when an atom is stable
The outer shell has the maximum electrons
They are shared
Electrons are transferred
What don't solid ionic compounds do
Don't have strong electrostatic forces between them
Don't form crystals
Don't conduct electricity
What are simple covalent bonds
Few atoms held together by covalent bonds
Transferring electrons
Few atoms held together by ionic bonds
Properties of a simple covalent bond (3)
Low melting/boiling point
High melting/boiling point
No free electrons
Does not conduct electricity
Conducts electriciy
Free electrons
Which one is graphite (other is diamond)
0%
0
0%
0
Properties of graphite (8)
Delocalised between layers
Unable to slide over each other
Softer than diamond
Tougher than diamond
Low energy to break
Lots of energy to break
Electrolysis
Transparent
Used in pencils
Insoluble in water
Colourful
Can slide over eachother
Black/shiny
Properties of Diamond (8)
Delocalised between layers
Each carbon atom is joined to 4 others
Very hard
Ductile
Malleable
High melting point
Delocalised electrons
Used in cutting tools
Not shiny
Does not conduct electricity
No delocalised electrons
Easily destroyed
Black
Transparent
Colourful
What is a smart material
Changes are reversable
Changes are irreversible
Moulds into its own shape
What is a thermochromic pigment
Colour changing due to light
Colour changing due to temperature
Colour changing due to PH
What is a photochromic pigment
Colour changing due to light
Colour changing due to temperature
Colour changing due to PH
What is a shape memory polymer
Can return to moulded shape when heated
Turns into liquid then solidifies to make a shape
Can return to original shape
What is a shape memory alloy
Mixtures of plastics
Mixtures of metals
Mixtures of liquids
What is a hydrogel
Permeable solid
Rapidly expands when heated
Absorbs liquid
What are hydrogels used in
Fixing cars
Artificial muscles
Artificial intelligence
What is an indicator
Detects temperature
Detects PH
What are acids often produced from
Metal oxides
Non metal oxides
What happens when acid reacts with Alkali
Nothing
Explosion
Forms new liquids
Makes salt/water
What is an exothermic reaction
Absorbing heat energy
Releasing heat energy
What is an exothermic reaction
Absorbing heat energy
Releasing heat energy
What salt does nitric form
Chloride
Sulfate
Nitrate
What salt does Hydrochloric acid form
Chloride
Sulfate
Nitrate
What salt does Sulphuric acid form
Chloride
Sulfate
Nitrate
What is electrolysis
Breakdown of acids and alkalis
Breakdown of a compound using electrical current
What is reduction
Gain of electrons
Gain of protons
Gain of neutrons
How do you extract iron
Blast furnace
Electrolysis
Extracting iron
What is a transition metal (4)
Good conductor heat/electricity
Bad conductor heat/electricty
Malleable
Low melting point
High density
Less reactive
Very reactive
Extracting Aluminium
Energy In 436+243=679
Energy Out 2x432=864
Energy change 679-864=-185
Oil fractioning
How do you get rid of oxygen
Breathe on it
Fire blanket
Sit down
Water
Fire resistant materials
How do you get rid of heat
Breathe on it
Fire blanket
Water
How do you get rid of fuel
Water
Fire blanket
Fire extinguisher
Fire resistant materials
How do you test for Alkenes
PH scale
Bromine water
Water
Acid
What happens to the bromine water
Becomes dirty
Becomes colourless
Turns black
What is Polyehtene used for
Plastic Bags
Ropes
Pens
What is polypropene used for
Plastic Bags
Ropes
Pens
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