Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-1]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
has a fixed melting point?
true or false?
true or false?
true or false?
true, true, false
true, false, false
false, false, true
false, true, true
Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-2]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
has only one type of atom?
true or false?
true or false?
true or false?
true, true, false
true, false, false
false, false, true
false, true, true
Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-3]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
always has the same composition?
true or false?
true or false?
true or false?
false, true, true
true, false, false
true, true, false
false, false, true
Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-4]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
has a definite chemical symbol or formula?
true or false?
true or false?
true or false?
false, false, true
true, false, true
false, true, false
true, true, false
Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-5]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
has no fixed boiling point?
true or false?
true or false?
true or false?
false, false, true
true, false, true
false, true, false
true, true, false
Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-6]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
is easily separated into different substances?
true or false?
true or false?
true or false?
false, true, true
false, false, true
true, true, false
true, false, false
Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-7]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
has more than one type of atom?
true or false?
true or false?
true or false?
true, true, false
false, false, true
false, true, true
true, false, false
Given the STATEMENT about ...., decide whether it is TRUE or FALSE for an ELEMENT, COMPOUND or MIXTURE [8f-8]
STATEMENT about ....
ELEMENT
COMPOUND
MIXTURE
there are only about 100 of them?
true or false?
true or false?
true or false?
true, true, false
false, false, true
false, true, true
true, false, false
/What is the formula of the molecule? [8f-9]
C2H6O
2C6HO
C3H6
C6H2O
What is the formula of the molecule? [8f-10]
C5H6I2
C3H6Cl2
C6H3Cl2
C2H6Cl3
What is the formula of the molecule? [8f-11]
C8H3
3C8H
C3H8
C3H6
What is the formula of the molecule? [8f-12]
C2H6O3
3C6H2O
C5H6O
C3H6O2
When some salt is dissolved in plenty of water, which statement is most likely TRUE about the resulting solution? [8f-13]
the boiling point is higher than pure water
the freezing point is higher than pure water
the boiling point decreases the longer the solution is boiled
the solution becomes less concentrated the longer it is boiled
When some salt is dissolved in plenty of water, which statement is most likely TRUE about the resulting solution? [8f-14]
the boiling point is lower than pure water
the freezing point is lower than pure water
the boiling point decreases the longer the solution is boiled
the solution becomes less concentrated the longer it is boiled
When some salt is dissolved in plenty of water, which statement is most likely TRUE about the resulting solution? [8f-15]
the boiling point is lower than pure water
the freezing point is higher than pure water
the boiling point increases the longer the solution is boiled
the solution becomes less concentrated the longer it is boiled
When some salt is dissolved in plenty of water, which statement is most likely TRUE about the resulting solution? [8f-16]
the boiling point is lower than pure water
the freezing point is higher than pure water
the boiling point decreases the longer the solution is boiled
the solution becomes more concentrated the longer it is boiled
Which order of the three words matches the three substances iron, iron oxide, steel ?, ?, ? [8f-17]
element, compound, mixture
compound, element, mixture
mixture, compound, element
element, mixture, compound
Which order of the three words matches the three substances salt, sodium, seawater ?, ?, ? [8f-18]
element, compound, mixture
compound, element, mixture
mixture, compound, element
element, mixture, compound
Which order of the three words matches the three substances brass, copper oxide, zinc ?, ?, ? [8f-19]
element, compound, mixture
compound, element, mixture
mixture, compound, element
element, mixture, compound
Which order of the three words matches the three substances hydrogen, petrol, water ?, ?, ? [8f-20]
element, compound, mixture
compound, element, mixture
mixture, compound, element
element, mixture, compound
Which order of the three words matches the three substances carbon dioxide, coal, carbon ?, ?, ? [8f-21]
compound, mixture, element
mixture, compound, element
element, mixture, compound
compound, element, mixture
Which order of the three words matches the three substances plaster of Paris, gypsum, flowers of
sulfur ?, ?, ? [8f-22]
compound, mixture, element
mixture, compound, element
element, mixture, compound
compound, element, mixture
Which order of the three words matches the three substances chlorine, rock salt, sodium chloride ?, ?, ? [8f-23]
compound, mixture, element
mixture, compound, element
element, mixture, compound
compound, element, mixture
Which order of the three words matches the three substances sodium hydroxide, oxygen, bleach ?, ?, ? [8f-24]
compound, mixture, element
mixture, compound, element
element, mixture, compound
compound, element, mixture
Which two words apply to the substance nitrogen? [8f-25]
gas, element
liquid, compound
solid, mixture
gas, compound
Which two words apply to the substance copper
sulfate? [8f-26]
gas, element
solid, compound
solid, mixture
gas, compound
Which two words apply to the substance wood? [8f-27]
gas, element
solid, compound
solid, mixture
gas, compound
Which two words apply to the substance
sulfur dioxide? [8f-28]
gas, element
solid, compound
solid, mixture
gas, compound
Which two words apply to the substance vinegar? [8f-29]
liquid, mixture
solid, element
gas, mixture
liquid, element
Which two words apply to the substance magnesium? [8f-30]
liquid, mixture
solid, element
gas, mixture
liquid, element
Which two words apply to the substance air? [8f-31]
liquid, mixture
solid, element
gas, mixture
liquid, element
Which two words apply to the substance mercury? [8f-32]
liquid, mixture
solid, element
gas, mixture
liquid, element
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-33]
at the start they are a mixture
at the end they are a mixture
at the start they cannot be separated with a magnet
at the end they can be separated with a magnet
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-34]
at the start they are a compound
at the end they are a compound
at the start they cannot be separated with a magnet
at the end they can be separated with a magnet
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-35]
at the start they are a compound
at the end they are a mixture
at the start they can be separated with a magnet
at the end they can be separated with a magnet
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-36]
at the start they are a compound
at the end they are a mixture
at the start they cannot be separated with a magnet
at the end they cannot be separated with a magnet
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-37]
the colour change suggests a chemical reaction has happened overall
FeS describes them at the start, Fe + S describes them at the end
at the start, acid will act on the iron forming hydrogen and the same gas is formed with acid and the dark-grey solid product
the red glow without heating shows overall a physical change has happened to the mixture when cool
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-38]
the colour change suggests a physical change has happened overall
Fe + S describes them at the start, FeS describes them at the end
at the start, acid will act on the iron forming hydrogen and the same gas is formed with acid and the dark-grey solid product
the red glow without heating shows overall a physical change has happened to the mixture when cool
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-39]
the colour change suggests a physical change has happened overall
FeS describes them at the start, Fe + S describes them at the end
at the start, acid will act on the iron forming hydrogen and hydrogen
sulfide gas is formed with acid and the dark-grey solid product
the red glow without heating shows overall a physical change has happened to the mixture when cool
Silvery grey iron filings are added to yellow
sulfur powder in a test tube. The contents of the test tube were strongly heated until they glowed red without further heating to form a dark grey dull solid. Which statement is TRUE about the contents of the test tube in the experiment? [8f-40]
the colour change suggests a physical change has happened overall
FeS describes them at the start, Fe + S describes them at the end
at the start, acid will act on the iron forming hydrogen and the same gas is formed with acid and the dark-grey solid product
the red glow without heating suggests overall a chemical change has happened to the mixture when cool
Which method of separation is best to use for separating petrol from crude oil? [8f-41]
distillation
evaporation
filtration
chromatography
Which method of separation is best to use for obtaining salt from seawater? [8f-42]
distillation
evaporation
filtration
chromatography
Which method of separation is best to use for removing silt from muddy water? [8f-43]
distillation
evaporation
filtration
chromatography
Which method of separation is best to use for investigating the composition of food dyes in sweet colours? [8f-44]
distillation
evaporation
filtration
chromatography
Which method of separation is best to use for purifying water containing small quantities of dissolved minerals? [8f-45]
distillation
evaporation
filtration
chromatography
Which method of separation is best to use for obtaining fertiliser crystals from neutralising nitric acid solution with the alkali ammonia? [8f-46]
distillation
evaporation
filtration
chromatography
Which method of separation is best to use for separating a solid product* formed from mixing two solutions? (* called a precipitate) [8f-47]
distillation
evaporation
filtration
chromatography
Which method of separation is best to use for checking which ink was used in a forged cheque? [8f-48]
distillation
evaporation
filtration
chromatography
Which particle is a compound made up of three elements? [8f-49]
8
2
4
7
Which particle is a compound made up of three elements? [8f-50]
2
9
4
7
Which particle is an element made up of single atoms? [8f-51]
1
6
3
5
Which particle is a compound made up of two elements? [8f-52]
3
5
6
1
Which particle is a compound made up of two elements? [8f-53]
7
8
6
3
Which particle is a molecule made of 4 atoms? [8f-54]
7
6
8
2
Which particle is formed when two different colourless gases chemically combine? [8f-55]
7
6
4
2
Which particle is formed when a black solid and a colourless gas chemically combine? [8f-56]
9
6
4
2
Given the following relative atomic masses: Cu = 64, S = 32 and O = 16; calculate the relative formula mass of copper
sulfate, CuSO4 [rfm-1]
160
112
96
336
Given the following relative atomic masses: H = 1 and C = 12; calculate the relative molecular mass of ethane, C2H6 [rfm-2]
13
30
18
25
Given the following relative atomic masses: H = 1 and C = 12; calculate the relative molecular mass of octane, C8H18 [rfm-3]
13
96
114
112
Given the following relative atomic masses: H = 1, N = 14 and O = 16; calculate the relative formula mass of nitric acid, HNO3 [rfm-4]
31
93
62
63
Given the following relative atomic masses: H = 1, N = 14 and O = 16; calculate the relative formula mass of ammonium nitrate, NH4NO3 [rfm-5]
80
31
90
180
Given the following relative atomic masses: H = 1, N = 14, O = 16 and S = 32; calculate the relative formula mass of ammonium
sulfate, (NH4)2SO4 [rfm-6]
63
132
216
100
Given the following relative atomic masses: H = 1, O = 16 and S = 32; calculate the relative formula mass of
sulfuric acid, H2SO4 [rfm-7]
49
194
98
66
Given the following relative atomic masses: O = 16, Al = 27 and S = 32; calculate the relative formula mass of aluminium
sulfate, Al2(SO4)3 [rfm-8]
75
315
171
342
Given the following relative atomic masses: H = 1 and Cl = 35.5, calculate the relative formula mass of hydrochloric acid, HCl [rfm-9]
36.5
18
35.5
37.5
Given the following relative atomic masses: Na = 23 and Cl = 35.5, calculate the relative formula mass of sodium chloride, NaCl [rfm-10]
40
58.5
49.5
35
Given the following relative atomic masses: Ca = 40 and Cl = 35.5, calculate the relative formula mass of calcium chloride, CaCl2 [rfm-11]
75.5
151
111
146.5
Given the following relative atomic masses: H = 1, O = 16 and Mg = 24, calculate the relative formula mass of magnesium hydroxide, Mg(OH)2 [rfm-12]
41
82
42
58
Given the following relative atomic masses: Al = 27 and Cl = 35.5, calculate the relative formula mass of aluminium chloride, AlCl3 [rfm-13]
133.5
62.5
187.5
98
Given the following relative atomic masses: H = 1, O = 16 and Al = 27, calculate the relative formula mass of aluminium hydroxide, Al(OH)3 [rfm-14]
44
78
132
46
Given the following relative atomic masses: H = 1, C = 12 and O = 16; calculate the relative molecular mass of glucose, C6H12O6 [rfm-5]
29
40
180
90
Given the following relative atomic masses: H = 1, C = 12 and O = 16; calculate the relative molecular mass of ethanol ('alcohol'), C2H5OH [rfm-16]
29
23
41
46
Given the following relative atomic masses: H = 1, C = 12 and O = 16; calculate the relative molecular mass of ethanoic acid ('acetic acid'), CH3COOH [rfm-17]
60
29
84
58
Given the following relative atomic masses: O = 16 and Fe = 56; calculate the relative formula mass of iron(II) oxide, FeO [rfm-18]
40
72
56
16
Given the following relative atomic masses: O = 16 and Fe = 56; calculate the relative formula mass of iron(III) oxide, Fe2O3 [rfm-19]
72
200
160
216
Given the following relative atomic masses: O = 16 and Fe = 56; calculate the relative formula mass of the iron oxide, Fe3O4 [rfm-20]
72
272
174
232
Given the following relative atomic masses: H = 1 and C = 12; calculate the relative molecular mass of methane, CH4 [rfm-21]
16
13
52
10
Given the following relative atomic masses: H = 1 and C = 12; calculate the relative molecular mass of propane, C3H8 [rfm-22]
13
44
99
40
Given the following relative atomic masses: C = 12 and O = 16; calculate the relative molecular mass of carbon dioxide, CO2 [rfm-23]
28
56
44
14
Given the following relative atomic masses: C = 12, O = 16 and Cu = 64; calculate the relative formula mass of copper carbonate, CuCO3 [rfm-24]
92
276
148
124
Given the following relative atomic masses: C = 12, O = 16 and Ca = 40; calculate the relative formula mass of calcium carbonate, CaCO3 [rfm-25]
100
68
204
124
Which substance is likely to have a simple molecular structure? [cb-1]
melts at 17oC, insoluble in water, non-conductor of electricity either when solid or molten
melts at 670oC, dissolves in water, non-conductor of electricity when molten, undergoes electrolysis in aqueous solution
melts at 2600oC, dissolves in water, non-conductor of electricity when solid, undergoes electrolysis in aqueous solution
melts at 1400oC, insoluble in water, good conductor of electricity either when solid or molten
Which substance is likely to have a giant ionic structure? [cb-2]
melts at 17oC, insoluble in water, non-conductor of electricity either when solid or molten
melts at 2800oC, insoluble in water, non-conductor of electricity when molten or solid
melts at 2600oC, dissolves in water, non-conductor of electricity when solid, undergoes electrolysis in aqueous solution
melts at 1400oC, insoluble in water, good conductor of electricity either when solid or molten
Which substance is likely to have a metallic structure? [cb-3]
melts at 17oC, insoluble in water, non-conductor of electricity either when solid or molten
melts at 2800oC, insoluble in water, non-conductor of electricity when molten or solid
melts at 2600oC, dissolves in water, non-conductor of electricity when solid, undergoes electrolysis in aqueous solution
melts at 1400oC, insoluble in water, good conductor of electricity either when solid or molten
Which substance is likely to have a giant covalent structure? [cb-4]
melts at 17oC, insoluble in water, non-conductor of electricity either when solid or molten
melts at 2800oC, insoluble in water, non-conductor of electricity when molten or solid
melts at 2600oC, dissolves in water, non-conductor of electricity when solid, undergoes electrolysis in aqueous solution
melts at 1400oC, insoluble in water, good conductor of electricity either when solid or molten
A solution of sodium chloride conducts electricity because the? [cb-6]
current breaks down sodium chloride into sodium ions and chloride ions
ions formed from the water carry the current
sodium ions and chloride ions are free to move and carry the current
the free
moving water molecules are good conductors
An atom can turn into an ion if it? [cb-7]
gains an electron
loses a proton
gains a neutron
loses a neutron
An atom can turn into an ion if it? [cb-8]
gains a proton
loses a proton
gains a neutron
loses an electron
When a covalent bond is formed between atoms of different elements ? [cb-9]
electrons are shared
electrons are transferred
protons are shared
protons are transferred
When an ionic bond is formed between atoms of different elements? [cb-10]
electrons are shared
electrons are transferred
protons are shared
protons are transferred
Which of the following substances consists of a metal lattice? [cb-25]
high melting point, solid doesn't conduct electricity, aqueous solution conducts electricity
high melting point, solid conducts electricity, insoluble in water
low melting point, solid doesn't conduct electricity, insoluble in water
Molten or dissolved sodium chloride conducts electricity. The current is carried in the melt by? [cb-28]
ions
metal atoms
molecules
electrons
Sodium chloride has a high melting point because it has? [cb-29]
a giant covalent 3-dimentional structure
many ions strongly attracted together
molecules packed tightly together
strong covalent double bonds
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-30]
conduct electricity when molten
conduct electricity when solid
have a low melting point
consist of small NaCl molecules
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-31]
not conduct electricity when molten
conduct electricity when dissolved in water
have a low melting point
consist of small NaCl molecules
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-32]
not conduct electricity when molten
not conduct electricity when dissolved in water
have a high melting point
consist of small NaCl molecules
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride
will? [cb-33]
conduct electricity when solid
not conduct electricity when dissolved in water
have a low melting point
consist of charged particles
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-34]
not conduct electricity when solid
not conduct electricity when dissolved in water
have a low melting point
consist of NaCl molecules
Sodium chloride is a typical ionic compound formed by combining a metal with a non-metal. Sodium chloride will? [cb-35]
conduct electricity when solid
will dissolved in water
have a low melting point
consist of NaCl molecules
A substance has a giant covalent structure and has a high melting point. The substance could be [cb-36]
aluminium
copper
poly(ethene)
carbon (diamond)
Sulphur is a solid non-metallic element at room temperature, so it is? [cb-41]
a brittle substance
a good conductor of electricity
a good conductor of heat
a substance with a high melting point
Sulphur is a solid non-metallic element at room temperature, so it is? [cb-42]
easily bent into shape
a poor conductor of electricity
a good conductor of heat
a substance with a high melting point
Sulphur is a solid non-metallic element at room temperature, so it is? [cb-43]
easily bent into shape
a good conductor of electricity
a poor conductor of heat
a substance with a high melting point
Sulphur is a solid non-metallic element at room temperature, so it is? [cb-44]
easily bent into shape
a good conductor of electricity
a good conductor of heat
a substance with a low melting point
Copper is a metallic element so it is likely to be a? [cb-45]
substance with a high melting point
poor conductor of electricity
substance with a low boiling point
poor conductor of heat
Copper is a metallic element so it is likely to be a? [cb-46]
substance with a low melting point
good conductor of electricity
substance with a low boiling point
poor conductor of heat
Copper is a metallic element so it is likely to be a? [cb-47]
substance with a low melting point
poor conductor of electricity
substance with a high boiling point
poor conductor of heat
Copper is a metallic element so it is likely to be a? [cb-48]
substance with a low melting point
poor conductor of electricity
substance with a low boiling point
good conductor of heat
Copper is a metallic element so it is likely to be a? [cb-49]
substance with a low melting point
poor conductor of electricity
substance with a shiny surface
poor conductor of heat
Copper is a metallic element so it is likely to be a? [cb-50]
substance with a low melting point
poor conductor of electricity
substance easily hammered into shape
poor conductor of heat
Aluminium fluoride is an ionic compound. When this compound is formed from aluminium and fluorine? [cb-53]
electrons are shared
electrons are transferred
protons are shared
protons are transferred
Water is a covalent compound. When this compound is formed from hydrogen and oxygen? [cb-54]
electrons are shared
electrons are transferred
protons are shared
protons are transferred
From four substances described below, which is most likely to be an ionic compound? [cb-55]
melting point 20oC, molten substance doesn't conduct electricity
melting point 150oC, molten substance doesn't conduct electricity
melting point 800oC, molten substance readily conducts electricity
melting point 1500oC, molten substance is a poor electrical conductor
From four substances described below, which is most likely to consist of small molecules? [cb-56]
melting point 20oC, molten substance doesn't conduct electricity
melting point 1150oC, molten substance conducts electricity
melting point 480oC, molten substance readily conducts electricity
melting point 1500oC, molten substance is a poor electrical conductor
From four substances described below, which is most likely to consist of a giant covalent structure? [cb-57]
melting point 20oC, molten substance doesn't conduct electricity
melting point 1150oC, molten substance readily conducts electricity
melting point 480oC, molten substance readily conducts electricity
melting point 1500oC, molten substance is poor electrical conductor
Fluorine (F) has an atomic number of 9. Which represents the electron arrangement of the fluoride ion (F-)? [cb-58]
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