AQA (9-1) Topic 8

Frage 1 von 8

1

Artificial colours can be detected and identified using:

Wähle eine der folgenden:

Filtration
Paper chromatography
Flame tests
Mass spectrometer

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Frage 2 von 8

1

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Paper chromatography works because some of the coloured substances are better at dissolving in the liquid than they are at bonding with the paper, so they travel further the paper.

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Frage 3 von 8

1

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

There are four gases you need to know how to test. Select the correct gas, and fill the blanks for the tests below.

( Hydrogen, Oxygen, Carbon dioxide, Chlorine ) can be tested by placing ( a lighted splint, a glowing splint ) over the end of a test tube, and hearing a 'squeaky pop'.

( Oxygen, Hydrogen, Carbon dioxide, Chlorine ) can be tested by placing a ( glowing splint, lighted splint ) over the end of a test tube, and seeing it relight.

( Carbon dioxide, Oxygen, Hydrogen, Chlorine ) can be tested by bubbling the gas through limewater, and seeing it turn cloudy.

( Chlorine, Oxygen, Hydrogen, Carbon dioxide ) can be tested for by holding ( damp blue, dry blue, damp red, dry red ) litmus paper over the end of a test tube, and seeing it turn ( red, then white, blue, then white ).

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Frage 4 von 8

1

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Paper chromatography consists of two stages:
the phase (a.k.a. the phase that doesn't move - this is the )
the phase (a.k.a. the phase that moves - this is the )

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Frage 5 von 8

1

Wähle von der Aufklappliste, um den Text zu vervollständigen.

A formulation is a ( mixture, compound, element ) that has been designed as a useful product.

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Frage 6 von 8

1

Pure substances will melt and boil ❌ temperatures, so we can use the temperature that a substance melts/boils at to tell how ❌ it is. Impure substances will melt ❌ temperatures. If a substance is ❌ it will generally also have a ❌ melting point and a ❌ boiling point.

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at specific

over a range of

pure

impure

lower

higher

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Frage 7 von 8

1

A pure substance is either a single element, or compound, that is not mixed with any other substance.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 8 von 8

1

GCSE Chemistry (AQA) Quiz am AQA (9-1) Topic 8, erstellt von https:// revisechemistry.uk am 06/03/2018.

AQA (9-1) Topic 8

Frage 1 von 8

Artificial colours can be detected and identified using:

Wähle eine der folgenden:

Erklärung

Frage 2 von 8

Fülle die Lücke, um den Text zu vervollständigen

Paper chromatography works because some of the coloured substances are better at dissolving in the liquid than they are at bonding with the paper, so they travel further the paper.

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Frage 3 von 8

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

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Frage 4 von 8

Fülle die Lücken, um den Text zu vervollständigen.

Paper chromatography consists of two stages:
the phase (a.k.a. the phase that doesn't move - this is the )
the phase (a.k.a. the phase that moves - this is the )

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Frage 5 von 8

Wähle von der Aufklappliste, um den Text zu vervollständigen.

A formulation is a ( mixture, compound, element ) that has been designed as a useful product.

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Frage 6 von 8

Pure substances will melt and boil ❌ temperatures, so we can use the temperature that a substance melts/boils at to tell how ❌ it is. Impure substances will melt ❌ temperatures. If a substance is ❌ it will generally also have a ❌ melting point and a ❌ boiling point.

Klicke und ziehe, um den Text zu vervollständigen.

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Frage 7 von 8

A pure substance is either a single element, or compound, that is not mixed with any other substance.

Wähle eins der folgenden:

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Frage 8 von 8

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If the red spot moved 7 cm, and the solvent moved 9 cm, then what is the Rf value of the red spot? (give answer to 2 d.p.)

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	Erstellt von https:// revisechemistry.uk vor etwa 6 Jahre

GCSE Chemistry (AQA) Quiz am AQA (9-1) Topic 8, erstellt von https:// revisechemistry.uk am 06/03/2018.

AQA (9-1) Topic 8

Frage 1 von 8

Artificial colours can be detected and identified using:

Wähle eine der folgenden:

Erklärung

Frage 2 von 8

Fülle die Lücke, um den Text zu vervollständigen

Paper chromatography works because some of the coloured substances are better at dissolving in the liquid than they are at bonding with the paper, so they travel further the paper.

Erklärung

Frage 3 von 8

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

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Frage 4 von 8

Fülle die Lücken, um den Text zu vervollständigen.

Paper chromatography consists of two stages: the phase (a.k.a. the phase that doesn't move - this is the ) the phase (a.k.a. the phase that moves - this is the )

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Frage 5 von 8

Wähle von der Aufklappliste, um den Text zu vervollständigen.

A formulation is a mixture compound element( mixture, compound, element ) that has been designed as a useful product.

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Frage 6 von 8

Pure substances will melt and boil ❌ temperatures, so we can use the temperature that a substance melts/boils at to tell how ❌ it is. Impure substances will melt ❌ temperatures. If a substance is ❌ it will generally also have a ❌ melting point and a ❌ boiling point.

Klicke und ziehe, um den Text zu vervollständigen.

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Frage 7 von 8

A pure substance is either a single element, or compound, that is not mixed with any other substance.

Wähle eins der folgenden:

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Frage 8 von 8

Fülle die Lücke, um den Text zu vervollständigen

If the red spot moved 7 cm, and the solvent moved 9 cm, then what is the Rf value of the red spot? (give answer to 2 d.p.)

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Paper chromatography consists of two stages:
the phase (a.k.a. the phase that doesn't move - this is the )
the phase (a.k.a. the phase that moves - this is the )

A formulation is a ( mixture, compound, element ) that has been designed as a useful product.