KS3 Science-Chemistry Quiz on "COMPOUNDS and MIXTURES" (based on QCA 8F)

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?
1. true, true, false
2. true, false, false
3. false, false, true
4. 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?
1. true, true, false
2. true, false, false
3. false, false, true
4. 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?
1. false, true, true
2. true, false, false
3. true, true, false
4. 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?
1. false, false, true
2. true, false, true
3. false, true, false
4. 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?
1. false, false, true
2. true, false, true
3. false, true, false
4. 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?
1. false, true, true
2. false, false, true
3. true, true, false
4. 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?
1. true, true, false
2. false, false, true
3. false, true, true
4. 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?
1. true, true, false
2. false, false, true
3. false, true, true
4. true, false, false
/What is the formula of the molecule? [8f-9]
1. C₂H₆O
2. ₂C₆HO
3. C₃H₆
4. C₆H₂O
What is the formula of the molecule? [8f-10]
1. C₅H₆I₂
2. C₃H₆Cl₂
3. C₆H₃Cl₂
4. C₂H₆Cl₃
What is the formula of the molecule? [8f-11]
1. C₈H₃
2. ₃C₈H
3. C₃H₈
4. C₃H₆
What is the formula of the molecule? [8f-12]
1. C₂H₆O₃
2. ₃C₆H₂O
3. C₅H₆O
4. C₃H₆O₂
When some salt is dissolved in plenty of water, which statement is most likely TRUE about the resulting solution? [8f-13]
1. the boiling point is higher than pure water
2. the freezing point is higher than pure water
3. the boiling point decreases the longer the solution is boiled
4. 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]
1. the boiling point is lower than pure water
2. the freezing point is lower than pure water
3. the boiling point decreases the longer the solution is boiled
4. 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]
1. the boiling point is lower than pure water
2. the freezing point is higher than pure water
3. the boiling point increases the longer the solution is boiled
4. 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]
1. the boiling point is lower than pure water
2. the freezing point is higher than pure water
3. the boiling point decreases the longer the solution is boiled
4. 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]
1. element, compound, mixture
2. compound, element, mixture
3. mixture, compound, element
4. element, mixture, compound
Which order of the three words matches the three substances salt, sodium, seawater ?, ?, ? [8f-18]
1. element, compound, mixture
2. compound, element, mixture
3. mixture, compound, element
4. element, mixture, compound
Which order of the three words matches the three substances brass, copper oxide, zinc ?, ?, ? [8f-19]
1. element, compound, mixture
2. compound, element, mixture
3. mixture, compound, element
4. element, mixture, compound
Which order of the three words matches the three substances hydrogen, petrol, water ?, ?, ? [8f-20]
1. element, compound, mixture
2. compound, element, mixture
3. mixture, compound, element
4. element, mixture, compound
Which order of the three words matches the three substances carbon dioxide, coal, carbon ?, ?, ? [8f-21]
1. compound, mixture, element
2. mixture, compound, element
3. element, mixture, compound
4. compound, element, mixture
Which order of the three words matches the three substances plaster of Paris, gypsum, flowers of sulphur ?, ?, ? [8f-22]
1. compound, mixture, element
2. mixture, compound, element
3. element, mixture, compound
4. compound, element, mixture
Which order of the three words matches the three substances chlorine, rock salt, sodium chloride ?, ?, ? [8f-23]
1. compound, mixture, element
2. mixture, compound, element
3. element, mixture, compound
4. compound, element, mixture
Which order of the three words matches the three substances sodium hydroxide, oxygen, bleach ?, ?, ? [8f-24]
1. compound, mixture, element
2. mixture, compound, element
3. element, mixture, compound
4. compound, element, mixture
Which two words apply to the substance nitrogen? [8f-25]
1. gas, element
2. liquid, compound
3. solid, mixture
4. gas, compound
Which two words apply to the substance copper sulphate? [8f-26]
1. gas, element
2. solid, compound
3. solid, mixture
4. gas, compound
Which two words apply to the substance wood? [8f-27]
1. gas, element
2. solid, compound
3. solid, mixture
4. gas, compound
Which two words apply to the substance sulphur dioxide? [8f-28]
1. gas, element
2. solid, compound
3. solid, mixture
4. gas, compound
Which two words apply to the substance vinegar? [8f-29]
1. liquid, mixture
2. solid, element
3. gas, mixture
4. liquid, element
Which two words apply to the substance magnesium? [8f-30]
1. liquid, mixture
2. solid, element
3. gas, mixture
4. liquid, element
Which two words apply to the substance air? [8f-31]
1. liquid, mixture
2. solid, element
3. gas, mixture
4. liquid, element
Which two words apply to the substance mercury? [8f-32]
1. liquid, mixture
2. solid, element
3. gas, mixture
4. liquid, element
Silvery grey iron filings are added to yellow sulphur 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]
1. at the start they are a mixture
2. at the end they are a mixture
3. at the start they cannot be separated with a magnet
4. at the end they can be separated with a magnet
Silvery grey iron filings are added to yellow sulphur 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]
1. at the start they are a compound
2. at the end they are a compound
3. at the start they cannot be separated with a magnet
4. at the end they can be separated with a magnet
Silvery grey iron filings are added to yellow sulphur 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]
1. at the start they are a compound
2. at the end they are a mixture
3. at the start they can be separated with a magnet
4. at the end they can be separated with a magnet
Silvery grey iron filings are added to yellow sulphur 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]
1. at the start they are a compound
2. at the end they are a mixture
3. at the start they cannot be separated with a magnet
4. at the end they cannot be separated with a magnet
Silvery grey iron filings are added to yellow sulphur 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]
1. the colour change suggests a chemical reaction has happened overall
2. FeS describes them at the start, Fe + S describes them at the end
3. 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
4. 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 sulphur 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]
1. the colour change suggests a physical change has happened overall
2. Fe + S describes them at the start, FeS describes them at the end
3. 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
4. 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 sulphur 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]
1. the colour change suggests a physical change has happened overall
2. FeS describes them at the start, Fe + S describes them at the end
3. at the start, acid will act on the iron forming hydrogen and hydrogen sulphide gas is formed with acid and the dark-grey solid product
4. 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 sulphur 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]
1. the colour change suggests a physical change has happened overall

STATEMENT about ....	ELEMENT	COMPOUND	MIXTURE
has a fixed melting point?	true or false?	true or false?	true or false?

KS3 Science-Chemistry Quiz on "COMPOUNDS and MIXTURES" (based on QCA 8F)

CLICK on [?] and read any feedback. EMAIL query?comment AND quote Q database number [8f-xx] 19-09-07