2. 09/23/15
Properties of metals and non-metalsProperties of metals and non-metals
Metals have very high melting points (which means that they are
usually _____) whereas non-metals will melt at lower ___________
All metals conduct heat and __________ very well, whereas non-
metals don’t (usually)
Metals are strong and ______ but bendable. Non-metals are usually
_____ or they will snap.
Metals will _____ when freshly cut or scratched, whereas non-metals
are usually dull
Metals have higher _______ than non-metals (i.e. they weigh more)
Metals can be used to make ______ (a mixture of different metals)
Words - alloys, electricity, solids, weak, densities,
temperatures, tough, shine
3. 09/23/15
Reactions of metals with oxygenReactions of metals with oxygen
When a metal reacts with oxygen it will form a METAL
OXIDE. This is what happens when a metal rusts or burns.
METAL + OXYGEN METAL OXIDE
Copy and complete the following reactions:
1) Magnesium + oxygen
2) Copper + oxygen
3) Calcium + oxygen
4) Iron + oxygen
Mg
O O
O O
Mg
Mg
O
O
Mg
4. 09/23/15
Reactions of metals with waterReactions of metals with water
When a metal reacts with water hydrogen is always given off.
The other product will be either a metal hydroxide or a metal
oxide.
Copy and complete the following reactions:
1) Sodium + water
2) Potassium + water
3) Calcium + water
4) Iron + steam
METAL + WATER METAL OXIDE + HYDROGEN
METAL + WATER METAL HYDROXIDE + HYDROGEN
5. 09/23/15
Reactions of metals with acidsReactions of metals with acids
Copy and complete the following reactions:
1) Calcium + hydrochloric acid
2) Zinc + hydrochloric acid
3) Iron + hydrochloric acid
4) Lithium + sulphuric acid
METAL + ACID SALT + HYDROGEN
e.g. magnesium + hydrochloric acid magnesium chloride + hydrogen
Mg
H Cl Mg
Cl
Cl
H
H
H Cl
7. 09/23/15
Name the following compounds:Name the following compounds:
1) CO2
2) KBr
3) HI
4) NaCl
5) CaCO3
6) MgCO3
7) MgSO4
For example:
HS = Hydrogen sulphide
Na2CO3 = sodium carbonate
Carbon dioxide
Potassium bromide
Hydrogen iodide
Sodium chloride
Calcium carbonate
Magnesium carbonate
Magnesium sulphate
Potassium permanganate
8. 09/23/15
The Reactivity SeriesThe Reactivity Series
The Reactivity Series lists
metals in order of reactivity:
Potassium
Sodium
Calcium
Magnesium
Aluminium
Carbon
Zinc
Iron
Lead
Copper
Silver
Gold
9. 09/23/15
Displacement reactionsDisplacement reactions
Mg
Magnesium
SO4
Cu
Copper sulphate
The magnesium
DISPLACES the copper
from copper sulphate
SO4
Mg
Magnesium sulphate
Cu
Copper
A displacement reaction is one where a MORE REACTIVE metal will
DISPLACE a LESS REACTIVE metal from a compound.
Magnesium + copper sulphate magnesium sulphate + copper
10. 09/23/15
Some example reactions…Some example reactions…
Reaction Prediction Observations
Zinc + copper sulphate
Zinc + lead nitrate
Copper + lead nitrate
Copper + silver nitrate
Extension work – write down the equations for these
reactions
11. 09/23/15
Some example reactions…Some example reactions…
Reaction Prediction Observations
Zinc + copper sulphate Reaction DID happen
Zinc + lead nitrate Reaction DID happen
Copper + lead nitrate Reaction DID NOT
happen
Copper + silver nitrate Reaction DID happen
Extension work – write down the equations for these
reactions