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Quiz von fletchere11, aktualisiert more than 1 year ago
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Erstellt von fletchere11
vor mehr als 9 Jahre
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Frage 1
Frage
What are all substances made up of?
Antworten
-
Atoms
-
Elements
-
Molecules
Frage 2
Frage
What is a substance made from only one type of atom?
Antworten
-
Element
-
Mixture
-
Compound
Frage 3
Frage
The nucleus of an atom is made up of protons and neutrons
Antworten
- True
- False
Frage 4
Frage
Electrons don't orbit the nucleus
Antworten
- True
- False
Frage 5
Frage
What are the sub-atomic particles that make up atoms? [3]
Antworten
-
Neutrons
-
Electrons
-
Protons
-
Molecules
-
Nucleus
-
Particles
Frage 6
Frage
Which is a description of Electrons?
Antworten
-
Very very small and have hardly any mass
-
Very big and make up most of our atoms mass
Frage 7
Frage
Which one of these is correct?
Antworten
-
Proton relative mass is 1 and its relative charge is +1 Neutron relative mass is 1 and its relative charge is 0 Electron relative mass is 1/2000 and its relative charge is -1
-
Proton relative mass is 0 and its relative charge is +2 Neutron relative mass is 1 and its relative charge is -1 Electron relative mass is 1/20 and its relative charge is 0
Frage 8
Frage
Atoms must have the same number of protons and electrons because they are neutral
Antworten
- True
- False
Frage 9
Frage
If a neutral atom has 7 protons how many electrons must it have?
Antworten
-
7
-
9
-
1
-
17
Frage 10
Frage
All atoms of a particular element are different
Antworten
- True
- False
Frage 11
Frage
What is the mass number?
Antworten
-
The number of protons and neutrons
-
The number of electrons
-
The number of protons and electrons
-
The number of protons, electrons and neutrons
Frage 12
Frage
The atomic number is the number of neutrons in an atom
Antworten
- True
- False
Frage 13
Frage
What is the correct electron shell structure?
Antworten
-
2, 8, 8, 8
-
1, 2, 3, 4
-
2, 4, 6 , 8
-
8, 8, 8, 2
Frage 14
Frage
What do chemical reactions show?
Antworten
-
Reactants
-
Products of a reaction
-
Protons Neutrons and Electrons
-
The reactivity series
Frage 15
Frage
What do state symbols tell us?
Antworten
-
State of reactants or products
-
Solids
-
Liquids
-
Gases
-
Aqueous
Frage 16
Frage
In a chemical reaction no atoms are created or destroyed they are just rearranged.
Antworten
- True
- False
Frage 17
Frage
What do ionic bonds occur between
Antworten
-
Metals
-
Non - Metals
-
Compounds
-
None of the Above
Frage 18
Frage
In ionic bonds metal atoms gain electrons and non - metal atoms lose electrons.
Antworten
- True
- False
Frage 19
Frage
What is limestone?
Antworten
-
A type of sedimentary rock composed mainly of calcium carbonate
-
A fossil
-
A stone made from limes
-
A lime in the shape of a stone
Frage 20
Frage
How long does it take to form limestone
Antworten
-
Over millions of years
-
100 years
-
10 months
-
billions of years
Frage 21
Frage
Limestone is dug out of the ground and quarried, then made into blocks which can be used in building
Antworten
- True
- False
Frage 22
Frage
Which is the test for Co2?
Antworten
-
Heating CaCo3 and seeing if it turns limewater cloudy
-
Blowing bubbles into limewater
-
Adding calcium carbonate and limewater together to see if a reaction occurs
Frage 23
Frage
Limestone can be heated strongly to make it undergo a DECOMPOSITION REACTION. This means that a THERMAL DECOMPOSITION is used to break it down to form carbon dioxide and calcium oxide.
Antworten
- True
- False
Frage 24
Frage
Limestone is used to test for carbon dioxide
Antworten
- True
- False
Frage 25
Antworten
-
The limestone cycle
-
The reaction of calcium hydroxide
-
a displacement reaction
Frage 26
Frage
What is heated together to make cement? [2]
Antworten
-
Clay
-
Limestone
-
Water
-
Limewater
-
Cement
Frage 27
Frage
What do we mix together to make concrete? [4]
Antworten
-
Sand
-
Water
-
Aggregate
-
Cement
-
Limewater
-
Corn flour
-
Stones/ Rocks
Frage 28
Frage
Which is not a property of metals?
Antworten
-
Corrosive
-
Malleable
-
Ductile
-
Good electrical conductors
-
good conductors of heat
-
sonorous
-
shiny
Frage 29
Frage
Most metals have HIGH melting and boiling points and they are all SOLID at room temperature (EXCEPT MERCURY)
Antworten
- True
- False
Frage 30
Frage
What is the rule that goes with displacement reactions?
Antworten
-
If the metal added is more reactive than the metal in the solution then a displacement reaction will occur.
-
If the non-metal added is more reactive than the metal in the solution then a displacement reaction will occur.
-
If the metal added is more reactive than the non-metal in the solution then a displacement reaction will occur.
Frage 31
Frage
Metal powders and oxides can't be heated together to give a displacement reaction
Antworten
- True
- False
Frage 32
Frage
Which is the method to extract copper from its ore?
Antworten
-
Put copper carbonate and carbon in a test tube with cotton wool in the top and heat it.
-
Put copper oxide and carbon dioxide in a test tube and heat it.
Frage 33
Frage
What is the method for extracting copper called?
Antworten
-
Reduction
-
Oxidisation
-
Decomposition
Frage 34
Frage
What decides how metals are extracted from there ores?
Antworten
-
The reactivity series
-
Its atomic number
-
Where it is found
-
How much of it there is
Frage 35
Frage
Tick the true statements [4]
Antworten
-
Metals above carbon in the reactivity series have to be extracted by electrolysis
-
Metals low in the reactivity series can be found native and just have to be purified
-
Metals near the bottom (e.g. copper) can be extracted through smelting
-
Metals in the middle of the reactivity series (below carbon) are extracted by chemical reduction
-
Metals in the middle of the reactivity series (below carbon) cant be extracted
-
Metals at the top of the reactivity series are highly dangerous and poisonous
Frage 36
Frage
What is bioleaching?
Antworten
-
When bacteria feed on low-grade metal ores
-
When bacteria leach onto things
-
Clingy bacteria
Frage 37
Frage
What are alloys ?
Antworten
-
Pure metals mixed with other elements to make them stronger
-
non-metals
-
elements
Frage 38
Frage
Why is crude oil not useful
Antworten
-
Because it is a mixture of many different compounds
-
Too runny
-
Tastes bad
Frage 39
Frage
Most of the compounds in crude oil are hydrocarbons
Antworten
- True
- False
Frage 40
Frage
We make crude oil useful by doing fractional distillation
Antworten
- True
- False
Frage 41
Frage
What are substances that are produced by hydrocarbons reacting with oxygen?
Antworten
-
Carbon dioxide
-
Water
-
Carbon monoxide
-
Oxygen
Frage 42
Frage
What is carbon dioxide (the main greenhouse gas in the air) causing according to scientists?
Antworten
-
Global warming
-
Global dimming
-
Food shortness
Frage 43
Frage
What are particulates made of?
Antworten
-
Carbon (soot) and unburnt hydrocarbons
-
Calcium
-
Carbon dioxide
Frage 44
Frage
How do particulates cause global dimming?
Antworten
-
They travel into the upper atmosphere, reflecting sunlight back into space.
-
They engulf all the light
-
They dont
Frage 45
Frage
What does a catalyst converter do?
Antworten
-
Greatly reduces the carbon monoxide and nitrogen oxide produced by a car engine.
-
Converts things into a catalyst
-
Converts carbon dioxide into oxygen
Frage 46
Frage
What is crude oil separated into in fractional distillation?
Antworten
-
Groups of compounds with similar properties
-
Elements
-
Atoms
Frage 47
Frage
what does the crude oil enter the fractionating column as ?
Antworten
-
Solid
-
Liquid
-
Gas
Frage 48
Frage
Which of these are true?
Antworten
-
Gases at the top have short chains (1-4 carbons)
-
Gases at the bottom have long chains (100+ carbons)
-
Gases at the bottom have short chains (less than 10 carbons)
-
Gases at the top have long chains (20+ carbons)
Frage 49
Frage
The compounds condense when the temperatures inside the fractionating column matches there boiling point.
Antworten
- True
- False
Frage 50
Frage
What are Alkanes and Alkenes?
Antworten
-
Hydrocarbons
-
Gases
-
They don't exist
Frage 51
Frage
What does the first part of the name show?
Antworten
-
The number of carbon atoms in the molecule
-
The number of hydrogen atoms in the molecule
-
Whether it is and alkane or and alkene
Frage 52
Frage
Alkanes have a single bon and are saturated
Antworten
- True
- False
Frage 53
Frage
Alkenes have a double bond and are unsaturated
Antworten
- True
- False
Frage 54
Frage
Which is the formula for Alkanes?
Antworten
-
C2H2n+2
-
C2H2n
-
C3H4n
Frage 55
Frage
Which is the formula for Alkenes?
Antworten
-
C2H2n
-
C2H2n+2
-
C4H3n+1
Frage 56
Frage
Thick = Viscous
Antworten
- True
- False
Frage 57
Frage
What are polymers?
Antworten
-
Compounds made when lots of alkene molecules join together
-
Mixtures of alkenes and alkanes
-
The same as monomers
Frage 58
Frage
What is it called when a long chain hydrocarbon is 'cracked' into smaller pieces?
Antworten
-
Thermal decomposition
-
Oxidisation
-
Exothermic reaction
Frage 59
Frage
What is the bromine water test for?
Antworten
-
To tell the difference between alkanes and alkenes
-
To split hydrocarbons
-
To make a polymer
Frage 60
Frage
What colour do alkenes go with orange bromine water?
Antworten
-
Colourless
-
Brown
-
Orange
-
Red
Frage 61
Frage
What colour do alkanes go in bromine water?
Antworten
-
Stay Orange
-
Purple
-
Pink
-
Green
Frage 62
Frage
What do smart polymers such as memory polymers do?
Antworten
-
Change there shape when they are hot or cold
-
Remember information
-
React to light
Frage 63
Frage
What can Ethanol be made by?
Antworten
-
Fermentation
-
Exothermic reaction
-
Distillation
Frage 64
Frage
Ethanol produced by fermentation is a biofuel.
Antworten
- True
- False
Frage 65
Frage
What do all vegetable oils contain?
Antworten
-
Long chain carbons and hydrogen's
-
Short chain carbons and hydrogen's
-
Long and short chain carbons
Frage 66
Frage
What state are unsaturated oils at room temperature?
Antworten
-
Liquid
-
Solid
-
Gas
Frage 67
Frage
To harden vegetable oils we react them with H2 and use a nickel catalyst at 60 oC.
Antworten
- True
- False
Frage 68
Frage
What are hardened vegetable oils sometimes called
Antworten
-
Hydrogenated oils
-
Exothermically hardened oils
-
Oxygenised oils
Frage 69
Frage
What are the 2 main ways to extract plant oils?
Antworten
-
Pressing
-
Steam distillation
-
Hydrogenation
-
Oxygenation
Frage 70
Frage
What is an emulsion?
Antworten
-
A mixture of liquids that do not dissolve in each other
-
A mixture of two substances that are dissolved in each other
-
Something that stops a substance separating
Frage 71
Frage
What is an emulsifier?
Antworten
-
Something that helps keeps emulsions mixed together
-
A mixture of oil and water
-
A mixture of emulsions
Frage 72
Frage
How long has our atmosphere been 'stable'?
Antworten
-
About 200 million years
-
About 100 years
-
1 million years
Frage 73
Frage
How much nitrogen is in the air?
Antworten
-
78%
-
65%
-
21%
-
14%
Frage 74
Frage
How much argon is in the atmosphere?
Antworten
-
0.9%
-
10%
-
82%
-
0.4%
Frage 75
Frage
How much carbon dioxide is in the atmosphere?
Antworten
-
0.04%
-
0.9%
-
26%
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