Reactions of Metals and Acids

2P9: Friday 12th November

Homework review

• Uses of metals in the home…

Review previous learning: hands up please!

• Metals react with an acid to produce a chemical called a salt. Hydrogen gas is also produced in this reaction.

• The general equation for a metal reacting with an acid is:Metal + Acid Salt + Hydrogen

Naming Salts

Salts have a first name and a last name:First Name – comes from the metalLast Name – comes from the acid

Acid name Salt producedHydrochloric acid chlorideSulphuric acid sulphateNitric acid nitrate

Examples of Salts

From our experiments, the reactions which worked were:

• Magnesium + Hydrochloric acid

• Zinc + Hydrochloric acid

• Magnesium + Sulphuric acid

• Zinc + Sulphuric acid

Magnesium Chloride + Hydrogen

Zinc Sulphate + Hydrogen

Magnesium Sulphate + Hydrogen

Zinc Chloride + Hydrogen

Updating our reactivity seriesCopper metal did not react with either Hydrochloric acid or Sulphuric acid. Copper is therefore not as reactive as Magnesium or Zinc.

We can add these metals to our reactivity series:

Potassium Most reactiveSodiumCalciumMagnesiumZincCopper Least reactive

And now for more fun…

• On your table is a reactivity series jigsaw…

• In your groups come up with a mnemonic to remember the reactivity series:– Remember ROYGBIV (Richard of York gave battle in

vain) to remember the colours of the rainbow– Potassium, Sodium, Calcium, Magnesium, Zinc, Copper

Remembering the reactivity series…• Please Potassium (K)• Send Sodium (Na)• Lions, Lithium (Li)• Cats, Calcium (Ca)• Monkeys, Magnesium (Mg)• And Aluminium (Al)• Zebras Zinc (Zn)• Into Iron (Fe)• Lovely Lead (Pb)• Hot Hydrogen (H) (non-metal)• Countries, Copper (Cu)• Signed Silver (Ag), • General Gold (Au)• Penguin. Platinum (Pt)

Most reactive

Least reactive

Next steps…

• Next Wednesday you will be doing the Metal Displacement Experiment

• Some metals are more reactive than others• A more reactive metal can displace a less

reactive metal from a salt solution• When a displacement reaction occurs we see

an chemical reaction taking place– Name three things we might see happening…

Metal Displacement experimentSodium Sulphate

ZincSulphate

CopperSulphate

Silvernitrate

Magnesium

Zinc

Copper

Review our learning:

• How do we produce a salt?• Where does the first name of a salt come

from?• Where does the last name of a salt come

from?• Which salt will Hydrochloric acid produce?• Which acid would give a Sulphate salt?