Metals and acids Flashcards
Metal + acid → _________ + _____________
Metal + water → ____________ + ___________
Metal + oxygen → ______________
Metal + acid → Salt + hydrogen
Metal + water → metal hydroxide + hydrogen
Metal + oxygen → metal oxide
Complete these displacement equations:
iron + copper sulfate
zinc + magnesium oxide
sodium + iron chloride
lead + aluminium nitrate
iron + copper sulfate →iron sulfate + copper
zinc + magnesium oxide → no reaction
sodium + iron chloride →Sodium chloride + Iron
lead + aluminium nitrate → no reaction
Describe how you would test for the presence of the gases below:
a) Oxygen gas
b) Carbon dioxide gas
c) Hydrogen gas
Oxygen gas - A blown out splint will relight
Carbon dioxide gas- using limewater will turn cloudy
Hydrogen gas –a lit splint will squeaky pop
The iron ore haematite contains 70% iron by mass. We can calculate the amount of iron obtained in 1 tonne (1000 kg) of haematite by:
mass of iron (kg) = (70÷ 100 )× 1000 = 700 kg
Calculate the amount of calcium and magnesium obtained from 500 kg of dolomite, which is 22% calcium and 13% magnesium by mass. Show your working.
mass of calcium = (22 ÷ 100) × 500 = 110 kg
mass of magnesium = (13 ÷ 100) × 500 = 65 kg
Write the following as a word equation:
CuO + 2HCl → CuCl2 + H2O
CaCO3 + 2HCl → CaCl2 + H2O + CO2
ZnO + H2SO4 → ZnSO4 + H2O
CuO + 2HCl → CuCl2 + H2O
Copper oxide + hydrochloric acid → copper chloride + water
CaCO3 + 2HCl → CaCl2 + H2O + CO2
Calcium carbonate + hydrochloric acid → calcium chloride + water + carbon dioxide
ZnO + H2SO4 → ZnSO4 + H2O
Zinc oxide + sulfuric acid → zinc sulfate + water
Name the elements in this reactivity series.
K
Na
Li
Ca
Mg
Al
C
Zn
Fe
Pb
Cu
Ag
Au
K - Potassium
Na - Sodium
Li- Lithium
Ca- Calcium
Mg - Magnesium
Al - Aluminium
C - Carbon
Zn - Zinc
Fe - iron
Pb - lead
Cu - copper
Ag - silver
Au- gold
Name the element that is the odd one out in the reactivity series .
Explain your answer:
Carbon- because it is not a metal.
Describe the material:
Polymers
What are its uses?
There are two types of this material – natural and synthetic. Properties depend on the identical groups of atoms that make them. Properties include flexibility, strength, and durability.
Uses:
Wool and cotton for clothes
rubber for tyres
LDPE for carrier bags
PVC for insulating electric cables.
Describe the material:
ceramics
What are its uses?
These materials are made from compounds such as metal silicates, metal oxides, metal carbides, and metal nitrides. They are often hard, brittle, and solids at room temperatures. They are also electrical insulators.
Uses:
Bricks for buildings
electrical power-line insulator
jet-engine turbine blades
common kitchen crockery
Describe the material:
composites
What are its uses?
Made from a mixture of materials. Properties shown are combinations of the properties of the materials that make it. Examples of these materials do not rust, are extremely light, and can withstand stretching and squashing forces.
Uses:
Reinforced concrete
carbon-fibre bicycles
glass-fibre-reinforced aluminium for making planes.
