Chemistry

What kind of rock are chalk and limestone examples of: sedimentary, igneous or metamorphic
sedimentary
1 of 40
If magma cooled quickly to form igneous rock, what size will the crystals be; small or large?
small
2 of 40
Give an example of a metamorphic rock
marble
3 of 40
Marble, chalk and limestone are natural forms of what?
calcium carbonate
4 of 40
Glass is made by heating limestone with sand and what else?
sodium carbonate
5 of 40
If calcium carbonate is heated, carbon dioxide and what else are formed?
calcium oxide
6 of 40
If water is added to calcium oxide, what is formed?
calcium hydroxide
7 of 40
Name the process that uses electrical energy to decompose compounds
electrolysis
8 of 40
To test for chlorine, dip damp blue litmus paper into the substance. Chlorine will turn the paper red (becasue it is acidic) then what colour?
white
9 of 40
More reactive metals must be extracted from their ores by what process?
electrolysis
10 of 40
Less reactive metals can be extracted from their ores by being heated with what other element?
carbon
11 of 40
What word describes a gain of oxygen?
oxidation
12 of 40
What word describes a loss of oxygen
reduction
13 of 40
Name a property of steel that makes it useful for building bridges
strong
14 of 40
The low density of aluminium makes it useful for building what?
aircrafts
15 of 40
What word describes a mixture of metals
alloy
16 of 40
What is the "smart material" that is an alloy of nickel and titanium called?
nitinol
17 of 40
What gas did the earth's early atmosphere mainly contain?
carbon dioxide
18 of 40
Our current atmosphere contains 78% of what gas?
nitrogen
19 of 40
In the earth's early atmosphere, water vapour condensed to form oceans, what gas dissolved in these oceans?
carbon dioxide
20 of 40
What process released oxygen, forming our atmosphere today?
photosynthesis
21 of 40
Crude oil is a mixtue of what?
hydrocarbons
22 of 40
What crude oil fraction is below naptha in the fractional distillation tower
kerosene
23 of 40
Are crude oil fractions with shorter or longer hydrocarbon chains difficult to ignite?
longer
24 of 40
What crude oil fraction is used for surfacing roads
bitumen
25 of 40
Complete combustion of a hydrocarbon forms carbon dioxide and what other substance?
water
26 of 40
I am a gas. I am a product of incomplete combustion, I am colourless, odourless, toxic and can reduce the oxygen carrying ability of red blood cells. What am I?
carbon monoxide
27 of 40
What gas dissolves in rainwater to form acid rain?
sulfur dioxide
28 of 40
Carbon dioxide, methane and water vapour are examples of what?
greenhouse gases
29 of 40
Name the following process that reduces the amount of carbon dioxide in the air: iron is added to oceans, plants grow and photosynthesise, sea creatures eat plants then die and sink to ocean floor, their carbonate shells are buried.
iron seeding
30 of 40
What term is used to describe a process that does not add carbon to the atmosphere because amount released is equal to amount removed?
carbon neutral
31 of 40
I am a type of fuel. I am a mostly carbon neutral alternative to fossil fuels, I am obtained from living or recently dead organisms. What type of fuel am I?
biofuel
32 of 40
I am a fuel. I produce lots of energy and I am described as a clean fuel because water is my only waste product. What am I?
hydrogen
33 of 40
Does an alkane or an alkene have the formula CnH2n+2
alkane
34 of 40
Alkenes turn bromine water what colour?
colourless
35 of 40
What word describes the breaking up of long hydrocarbon chains into smaller, more useful ones/
cracking
36 of 40
What word describes a substance that speeds up a reaction?
catalyst
37 of 40
What word describes a small molecule used to make a polymer?
monomer
38 of 40
What are manufactured polymers called?
plastics
39 of 40
Most polymers persist in landfill sites because they are not...
biodegradable
40 of 40

Other cards in this set

Card 2

Front

If magma cooled quickly to form igneous rock, what size will the crystals be; small or large?

Back

small

Card 3

Front

Give an example of a metamorphic rock

Back

Preview of the front of card 3

Card 4

Front

Marble, chalk and limestone are natural forms of what?

Back

Preview of the front of card 4

Card 5

Front

Glass is made by heating limestone with sand and what else?

Back

Preview of the front of card 5
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