5425938
Descrição
Quiz por Lilac Potato, atualizado more than 1 year ago
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Criado por Lilac Potato
aproximadamente 8 anos atrás
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Questão 1
Questão
Which of these can be found in the nucleus of an atom?
Responda
-
Proton
-
Electron
-
Neutron
Questão 2
Questão
Number of protons [blank_start]equals[blank_end] number of electrons
Responda
-
equals
Questão 3
Questão
Elements in the same group have...
Responda
-
the same number of electrons in their outer shell
-
similar properties
-
the same atomic number
-
the same number of shells
Questão 4
Questão
The mass number is the total number of [blank_start]protons[blank_end] and neutrons
Responda
-
protons
-
electrons
-
shells
Questão 5
Questão
What's the maximum number of electrons in the first shell?
Responda
-
2
-
8
-
4
-
1
Questão 6
Questão
An ionic bond is formed between 2 non-metals.
Responda
- True
- False
Questão 7
Questão
Covalent bonding involves [blank_start]sharing[blank_end] electrons.
Responda
-
sharing
Questão 8
Questão
Limestone thermally decomposes to produce ............ + carbon dioxide
Responda
-
calcium oxide
-
calcium hydroxide
-
water
-
limewater
Questão 9
Questão
Calcium carbonate reacts with acid to produce a calcium salt, [blank_start]carbon dioxide[blank_end] and water.
Responda
-
carbon dioxide
-
hydrogen
-
oxygen
Questão 10
Questão
Calcium oxide + water -----> ...........................?
Responda
-
Calcium hydroxide
-
Calcium carbonate
-
Limewater
Questão 11
Questão
Bubbling gas through limewater is the test for ..............?
Responda
-
carbon dioxide
-
hydrogen
-
limestone
Questão 12
Questão
Limestone can be used to make.....................?
Responda
-
cement
-
mortar
-
concrete
-
graphite
-
marble
Questão 13
Questão
What are some disadvantages of quarrying limestone?
Responda
-
Destroys habitats
-
Noise & dust pollution
-
Causes acid rain
-
It is cheap & quick
Questão 14
Questão
A metal ore is a rock which contains enough metal to make it worthwhile extracting metal from it
Responda
- True
- False
Questão 15
Questão
How will metals that are more reactive than carbon be extracted?
Responda
-
By electrolysis
-
By reduction with carbon
-
By smelting
-
By oxidation
Questão 16
Questão
Which of these can an electrolyte NOT be made of?
Responda
-
Metal salt solutions made from the ore
-
Molten metal oxides
-
Solid ore
Questão 17
Questão
In a solution of a dissolved metal compound, a more reactive metal with displace a less reactive metal as it bonds [blank_start]more[blank_end] strongly to the compound.
Responda
-
more
-
less
Questão 18
Questão
Which of these describes the bioleaching process?
Responda
-
Bacteria separate copper from copper sulphide, get energy from the bond between them, separating the copper and leaving a leachate with copper.
-
Plants are grown in soil that contains copper, copper builds up inside leaves, plants are harvested, dried & burned, copper is collected from ash in furnace
Questão 19
Questão
What are some positives of metal extraction?
Responda
-
Provides local people with jobs
-
Provides us with useful products
-
Doesn't pollute the environment
-
Doesn't permanently damage the environment
Questão 20
Questão
What are some properties of all metals?
Responda
-
Strong
-
Can be bent/shaped
-
Can conduct heat/electricity
-
Low density
-
Corrosion-resistant
Questão 21
Questão
Iron that has come straight from the blast furnace contains what percentage of iron?
Responda
-
96%
-
100%
-
93%
-
90%
Questão 22
Questão
Bronze is made of [blank_start]copper[blank_end] and tin.
Responda
-
copper
-
iron
-
chromium
Questão 23
Questão
Why can crude oil be separated into different fractions?
Responda
-
It is a mixture of hydrocarbons
-
It contains hydrocarbon compounds
-
It contains elements in their pure forms
Questão 24
Questão
A hydrocarbon can be tapped when it reaches its ................... ?
Responda
-
Boiling point
-
Melting point
Questão 25
Questão
Hydrocarbons (alkanes) are chains of carbon atoms surrounded by [blank_start]hydrogen[blank_end] atoms.
Responda
-
hydrogen
Questão 26
Questão
Which of the following are true? The shorter the molecule..........
(HINT: there are three!)
Responda
-
the less viscous it is
-
the more viscous it is
-
the more volatile it is
-
the less volatile it is
-
the more flammable it is
-
the less flammable it is
Questão 27
Questão
Why is crude oil a good fuel to use?
Responda
-
It burns cleanly
-
It is easier & cheaper
-
It is more reliable
-
It doesn't pollute
-
It is a renewable fuel
Questão 28
Questão
Which of these can be produced when burning a fossil fuel, other than carbon dioxide & water vapour?
Responda
-
Sulphur dioxide
-
Nitrogen oxides
-
Carbon monoxide
-
Hydrogen
-
Oxygen
Questão 29
Questão
Which of these fuels are 'carbon neutral'?
Responda
-
Ethanol (made by fermentation)
-
Biodiesel
-
Hydrogen gas
-
Ethanol (made by hydration)
Questão 30
Questão
Cracking involves passing a vaporised hydrocarbon over a powdered catalyst at a high temperature. Which of the following are true?
Responda
-
Aluminium oxide is the catalyst used
-
Nickel is the catalyst used
-
The temperature is about 400*C - 700*C
-
The temperature is about 900*C - 1200*C
Questão 31
Questão
Alkenes contain a carbon double bond which means that they are [blank_start]unsaturated[blank_end].
Responda
-
unsaturated
-
saturated
Questão 32
Questão
Which of these describes the fermentation process to produce ethanol?
Responda
-
sugar ----> ethanol + carbon dioxide
-
ethene + water vapour ----> ethanol
-
sugar ----> ethanol + water
Questão 33
Questão
The test for alkenes involves adding bromine water and, if an alkene is present, it will turn from colourless to brown.
Responda
- True
- False
Questão 34
Questão
What are the problems with the fermentation process?
Responda
-
It produces impure ethanol
-
It is a batch process
-
It is a continuous process
-
It uses a low temperature
Questão 35
Questão
Polymerisation involves joining together many monomers to form [blank_start]polymers[blank_end].
Responda
-
polymers
Questão 36
Questão
Which of these are uses of polymers?
Responda
-
Memory foam
-
Plastic bags
-
Car bodies
-
Sun cream
-
Wound dressings
-
Tooth fillings
Questão 37
Questão
Vegetable oils provide a lot of [blank_start]energy[blank_end].
Responda
-
energy
Questão 38
Questão
Why is it good that vegetable oils have high boiling points?
Responda
-
Foods can be cooked faster
-
Foods taste better
-
Foods are made healthier
Questão 39
Questão
[blank_start]Unsaturated[blank_end] oils contain a C=C double bond.
Responda
-
Unsaturated
-
Saturated
Questão 40
Questão
How can unsaturated oils be hardened?
Responda
-
React with hydrogen
-
React with water vapour
-
Nickel catalyst
-
Iron catalyst
-
60 degrees C
-
400 degrees C
Questão 41
Questão
Partially hydrogenated vegetable oils are much better for you than saturated fats.
Responda
- True
- False
Questão 42
Questão
Which of these are correct about emulsifiers?
Responda
-
Emulsifier molecules have a hydrophilic head that is attracted to water
-
Emulsifier molecules have a hydrophobic tail that is attracted to oil
-
Emulsifier molecules have a hydrophilic tail that is attracted to water
-
Emulsifier molecules have a hydrophobic head that is attracted to oil
Questão 43
Questão
What evidence did Wegener use to come up with his theory of Continental Drift?
Responda
-
Similar fossils found on opposite sides of the Atlantic Ocean
-
The idea of land bridges
-
The coastlines of Africa & S. America seeming to 'match'
-
Matching layers found in rocks in different continents
-
Measuring the movements of the continents
Questão 44
Questão
Wegener's theory of Continental Drift: 300 million years ago, there was one [blank_start]supercontinent[blank_end] (Pangaea) which broke into smaller continents which are still slowly drifting apart.
Responda
-
supercontinent
Questão 45
Questão
The mantle has all the properties of a [blank_start]solid[blank_end] but it can flow very slowly.
Responda
-
solid
Questão 46
Questão
Radioactive decay in the Earth's core releases [blank_start]heat[blank_end] energy which causes the mantle to flow in convection currents - moving the tectonic plates.
Responda
-
heat
Questão 47
Questão
Where did most of the carbon dioxide in the Earth's early atmosphere go?
Responda
-
Dissolved into the oceans
-
Absorbed by photosynthesis
-
'Locked up' in sedimentary rocks
Questão 48
Questão
What does the ozone layer do?
Responda
-
Blocks harmful rays from the Sun
-
Protect us from meteorites
-
Regulate our temperature
Questão 49
Questão
Miller-Urey experiment set up: Sealed [blank_start]nitrogen[blank_end], hydrogen, ammonia & methane into their apparatus & applied an electrical charge for a week.
Responda
-
nitrogen
Questão 50
Questão
Why is carbon dioxide removed before air is cooled to -200 degrees C in the fractional distillation of air?
Responda
-
It would freeze & block the pipes
-
It wouldn't condense
-
It must be distilled separately
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