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