AQA (9-1) Topic 8

Questão 1 de 8

1

Artificial colours can be detected and identified using:

Selecione uma das seguintes:

Filtration
Paper chromatography
Flame tests
Mass spectrometer

Explicação

Questão 2 de 8

1

Preencha o espaço em branco para completar o texto.

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.

Explicação

Questão 3 de 8

1

Selecione das listas do Menu para completar o texto.

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 ).

Explicação

Questão 4 de 8

1

Preencha os espaços em branco para completar o texto.

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 )

Explicação

Questão 5 de 8

1

Selecione da lista do Menu para completar o texto.

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

Explicação

Questão 6 de 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.

Arraste e solte para completar o texto.

at specific

over a range of

pure

impure

lower

higher

Explicação

Questão 7 de 8

1

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

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 8 de 8

1

GCSE Chemistry (AQA) Quiz sobre AQA (9-1) Topic 8, criado por https:// revisechemistry.uk em 06-03-2018.

AQA (9-1) Topic 8

Questão 1 de 8

Artificial colours can be detected and identified using:

Selecione uma das seguintes:

Explicação

Questão 2 de 8

Preencha o espaço em branco para completar o texto.

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.

Explicação

Questão 3 de 8

Selecione das listas do Menu para completar o texto.

Explicação

Questão 4 de 8

Preencha os espaços em branco para completar o texto.

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 )

Explicação

Questão 5 de 8

Selecione da lista do Menu para completar o texto.

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

Explicação

Questão 6 de 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.

Arraste e solte para completar o texto.

Explicação

Questão 7 de 8

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

Selecione uma das opções:

Explicação

Questão 8 de 8

Preencha o espaço em branco para completar o texto.

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.)

Explicação

	Criado por https:// revisechemistry.uk aproximadamente 6 anos atrás

GCSE Chemistry (AQA) Quiz sobre AQA (9-1) Topic 8, criado por https:// revisechemistry.uk em 06-03-2018.

AQA (9-1) Topic 8

Questão 1 de 8

Artificial colours can be detected and identified using:

Selecione uma das seguintes:

Explicação

Questão 2 de 8

Preencha o espaço em branco para completar o texto.

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.

Explicação

Questão 3 de 8

Selecione das listas do Menu para completar o texto.

Explicação

Questão 4 de 8

Preencha os espaços em branco para completar o texto.

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 )

Explicação

Questão 5 de 8

Selecione da lista do Menu para completar o texto.

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

Explicação

Questão 6 de 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.

Arraste e solte para completar o texto.

Explicação

Questão 7 de 8

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

Selecione uma das opções:

Explicação

Questão 8 de 8

Preencha o espaço em branco para completar o texto.

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.)

Explicação

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.