C5
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What are the first 4 elements of the reactivity series
Potassium Sodium Lithium Calcium
What are the second three elements of the reactivity series
Magnesium Zinc Iron
What are the least reactive in the reactivity series
Copper silver and gold
What is oxidisation
Oxygen has been added and electrons have been lost
What is reduction
Oxygen has been removed an element returns to normal atomic state
What is an ore
A rock that contains enough of a metal to make it worthwhile extracting
What does a metal reacting with water produce
A metal hydroxide and water
What metals do not react with water
Not very reactive ones Eg copper
What is a displacement reaction
When a more reactive metal displaces a less reactive metal in a compound
What is OIL RIG
Oxidised is Loss Reduction is gained
What happens when an acid reacts with a base
Neutralisation reaction occurs
What is produced in a neutralisation reaction
Salt and water
How else can you make a soluble salt
Reacting acid and a carbonate
What ions do acids produce
H+
Give an example of a base
Metale oxides and hydroxides
What do alkalis produce
OH-
What are strong acids
Acids that ionise completely in aqueous solutions
What is pH value of 0.000001
6
How is a metal removed from an ore
Reduction reaction
Where is carbon in reactivity series
Below magnesium
Where is hydrogen in reactivity series
Above copper
What are the charges on salts
No overall charge
how is ph measured
based on the concentration of H+ ions in mol/dm cubed