Metals
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What are Metals used for
To speed up reactions
What are ores?
Naturally occurring rocks that contain metals or metal compounds in sufficient amounts to make them worthwhile extracting them.
What are some properties of metals?
Lestre (shiny) Malleable (able to be moulded) Ducitile(drawn into wires) Thermal conductor Electrical conductor
What does a metallic structure exist as
a giant lattice of positively charged ions delocalised outer electrons
What is the Order of Reactivity
Potassium Sodium Lithium Calcium Magnesium Aluminium Zinc Iron Copper Silver Gold
What is Electrolysis
Electrolysis is using electrolysis to separate a compound into its elements
What metals are extracted using electrolysis PoSocCaMaAl
Potassium Sodium Calcium Magnesium Aluminium
What metals are extracted using heat and carbon/carbon monoxide
Zinc Iron Lead Copper
What metals are extracted using heat alone?
Mercury silver gold Platinum
What is an alloy?
a mixture of a metal and at least one other element (steel=carbon + others)
In ionic Formula equations, what kind of states do charges go on?
aqueous solutions and ionic solids
What is oxidation
the loss of electrons the gain of oxygen
What is reduction
the heating of a metal The loss of oxygen The gain of electrons
Where do electrons flow
Through the wires of a device
What is electricity
the flow of charged particles
What is an electrolyte
a liquid that conducts electricity and completes the circuit
What is the purpose of the ion bridge
to complete the circuit
Why must direct current b used for electrolysis
DC allows the products to form separate electrodes
What feature of Metallic bonding allows metals to conduct electricity
Delocalised outer electrons
Name 2 metals that do not react with oxygen
Gold and silver
Which metals do not react with acid?
Metals above hydrogen in the EC series
Which metals react with water
Metals above and including magnesium
How could you determine the order of reactivity of the metals
React the metals with water, acid and hydrogen
How would you use a metal to produce a soluble salt
Add acid until it no longer reacts with the metal Then filter the soluition and evaporate it