Metal reactivity
What is the name of the list that orders metals by how reactive they are?
Reactivity series
What is the positive electrode called
Anode
What is the pH of a neutral solution
7
A rock containing enough metal to be worth extracting
An ore
What safety equipment should you wear when using strong acids and alkalis
Goggles
Which is more reactive: magnesium or copper?
Magnesium
What is the ion called that forms at the cathode?
Cation
What colour does universal indicator turn for a strong acid
red
Which type of metal extraction uses carbon?
Reduction
A student adds magnesium to hydrochloric acid- what would they see
Fizzing
What gas is produced when a metal reacts with an acid?
Hydrogen
What must a substance be for electrolysis to work (2 answers)
Molten or Aqueous
What salt is made when hydrochloric acid reacts with sodium hydroxide
sodium chloride
Name the raw material used to extract iron in a blast furnace.
Heamatite
What process can you create copper sulphate crystals
Crystalisation
How is gold found in the ground and why?
Pure because it is unreactive
Why does an aluminium ion move towards the cathode during electrolysis?
electrostatic attraction
Write the word equation for a neutralisation reaction
Acid + Alkali --> Salt + Water
Why can iron be extracted using carbon but aluminium cannot?
Aluminium is more reactive than carbon
Why is electrolysis/ aluminium so expensive
the electricity/ making something molten requires a lot of energy6
Zinc + Copper sulfate --->
Zinc sulfate + copper
In the electrolysis of Aluminium oxide explain why the anode must be replaced?
The electrodes are made out of carbon and the oxygen reacts with carbon- eroding it
Fill in the gap:
Sodium hydroxide + ---> sodium phosphate + water
Phosphoric acid
Name the metal reactivity series in order
Potassium (K), Sodium (Na), Lithium (Li), Calcium (Ca), Magnesium (Mg), Aluminium (Al), Carbon (C), Zinc (Zn), Iron (Fe), Hydrogen (H), Copper (Cu), Silver (Ag), Gold (Au)