# data[].attributes.body
Revise

Test

Particles and mixtures

You got 8 out of 10

1

When solid copper sulfate is added to water and stirred, what is the solute?

You said:

The copper sulfate

Correct

Solute is the term given to the solid in a solution, so the copper sulfate is the solute.

2

What term is given to the spreading out of particles through a liquid or gas?

You said:

Diffusion

Correct

Diffusion is when particles of one substance spread out between the particles of another substance.

3

What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?

You said:

Compound

Correct

A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.

4

Approximately how many elements are there?

You said:

Approximately 100

Correct

There are approximately 100 elements and they are listed on the periodic table.

5

What would be the best way to separate insoluble calcium carbonate powder from water?

You said:

Filtration

Correct

Filtration is the best way to separate an insoluble solid from a liquid.

6

Which method would you use to separate alcohol and water?

You said:

Simple distillation

Incorrect

Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water. Simple distillation separates the solvent from the solute in a solution.

7

In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?

You said:

To prevent it washing away the spot of the coloured substance

Correct

If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.

8

During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?

You said:

0.75

Correct

The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1.

9

Which of these words could be used to describe air?

You said:

Compound

Incorrect

Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water. A compound is made from elements that have been chemically bonded together.

10

How could a mixture of iron and sulfur be separated?

You said:

Using a magnet

Correct

Iron is magnetic but sulfur is not, so a magnet will allow you to separate them.

# data[].attributes.body
Revise

Test

Particles and mixtures

You got 8 out of 10

1

When solid copper sulfate is added to water and stirred, what is the solute?

You said:

The copper sulfate

Correct

Solute is the term given to the solid in a solution, so the copper sulfate is the solute.

2

What term is given to the spreading out of particles through a liquid or gas?

You said:

Diffusion

Correct

Diffusion is when particles of one substance spread out between the particles of another substance.

3

What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?

You said:

Compound

Correct

A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.

4

Approximately how many elements are there?

You said:

Approximately 100

Correct

There are approximately 100 elements and they are listed on the periodic table.

5

What would be the best way to separate insoluble calcium carbonate powder from water?

You said:

Filtration

Correct

Filtration is the best way to separate an insoluble solid from a liquid.

6

Which method would you use to separate alcohol and water?

You said:

Simple distillation

Incorrect

Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water. Simple distillation separates the solvent from the solute in a solution.

7

In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?

You said:

To prevent it washing away the spot of the coloured substance

Correct

If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.

8

During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?

You said:

0.75

Correct

The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1.

9

Which of these words could be used to describe air?

You said:

Compound

Incorrect

Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water. A compound is made from elements that have been chemically bonded together.

10

How could a mixture of iron and sulfur be separated?

You said:

Using a magnet

Correct

Iron is magnetic but sulfur is not, so a magnet will allow you to separate them.

# data[].attributes.headline
josie aitchisonWhen solid copper sulfate is added to water and stirred, what is the solute?  You said:   	The mixture itself     Incorrect Solute is the term given to the solid in a solution, so the copper sulfate is the solute. The mixture is called the solution.  2  What term is given to the spreading out of particles through a liquid or gas?  You said:   	Diffusion     Correct Diffusion is when particles of one substance spread out between the particles of another substance.  3  What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?  You said:   	Compound     Correct A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.  4  Approximately how many elements are there?  You said:   	Approximately 100     Correct There are approximately 100 elements and they are listed on the periodic table.  5  What would be the best way to separate insoluble calcium carbonate powder from water?  You said:   	Filtration     Correct Filtration is the best way to separate an insoluble solid from a liquid.  6  Which method would you use to separate alcohol and water?  You said:   	Simple distillation     Incorrect Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water. Simple distillation separates the solvent from the solute in a solution.  7  In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?  You said:   	To prevent it washing away the spot of the coloured substance     Correct If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.  8  During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?  You said:   	1.33     Incorrect The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1. 1.33 is achieved if the numbers are divided the wrong way round.  9  Which of these words could be used to describe air?  You said:   	Element     Incorrect Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water. The ancient Greeks thought that air was an element but we know now that it is not.  10  How could a mixture of iron and sulfur be separated?  You said:   	Using a magnet     Correct Iron is magnetic but sulfur is not, so a magnet will allow you to separate them.   Try again      Back to Atomic structure      More Guides   Particles and mixtures    Atomic number, mass number and isotopes     Formula mass and mole calculations     Development of the periodic table     Groups and periods     Group 1 - the alkali metals     Group 7 - the halogens       Download the new Bitesize app now!   Revision on the go for GCSE, TGAU, Nat 4, Nat 5 & Higher   Get it here    Links   Bitesize GCSE Science - AQA    Bitesize GCSE Science - AQAFind old Science content, listed by exam board and spec, at URLs here.    GCSE Science - Edexcel GCSE Science - OCR Gateway GCSE Science - OCR 21st C       TES: Secondary Chemistry School Science Royal Society of Chemistry Education Quizzes: Chemistry Aptus Teach Subscription      GCSE Subjects     Architecture     Art and Design     Biology     Business     Chemistry     Computer Science     Design and Technology     Drama     Electronics     Engineering     English Language     English Literature     Food Technology     French     Geography     German     Graphics     History     ICT     Irish (Learners)     Mandarin     Maths (Wales – 2015 onwards)     Maths Numeracy (Wales – 2015 onwards)     Maths (pre-2015)     Maths (2015 onwards)     Media Studies     Modern Foreign Languages     Music     Physical Education     Physics     Product Design     PSHE and Citizenship     Religious Studies     Resistant Materials     Science     Sociology     Spanish     Systems and Control     Textiles     Welsh (Learners)       Languages: Cymraeg Gaeilge Gàidhlig   iWonderWhy do some people reject social media?bbc iwonderAre you getting enough sleep?bbc iwonderWhat's it like racing at 200mph?bbc

# data[].attributes.subject
josie aitchisonWhen solid copper sulfate is added to water and stirred, what is the solute?  You said:   	The mixture itself     Incorrect Solute is the term given to the solid in a solution, so the copper sulfate is the solute. The mixture is called the solution.  2  What term is given to the spreading out of particles through a liquid or gas?  You said:   	Diffusion     Correct Diffusion is when particles of one substance spread out between the particles of another substance.  3  What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?  You said:   	Compound     Correct A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.  4  Approximately how many elements are there?  You said:   	Approximately 100     Correct There are approximately 100 elements and they are listed on the periodic table.  5  What would be the best way to separate insoluble calcium carbonate powder from water?  You said:   	Filtration     Correct Filtration is the best way to separate an insoluble solid from a liquid.  6  Which method would you use to separate alcohol and water?  You said:   	Simple distillation     Incorrect Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water. Simple distillation separates the solvent from the solute in a solution.  7  In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?  You said:   	To prevent it washing away the spot of the coloured substance     Correct If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.  8  During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?  You said:   	1.33     Incorrect The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1. 1.33 is achieved if the numbers are divided the wrong way round.  9  Which of these words could be used to describe air?  You said:   	Element     Incorrect Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water. The ancient Greeks thought that air was an element but we know now that it is not.  10  How could a mixture of iron and sulfur be separated?  You said:   	Using a magnet     Correct Iron is magnetic but sulfur is not, so a magnet will allow you to separate them.   Try again      Back to Atomic structure      More Guides   Particles and mixtures    Atomic number, mass number and isotopes     Formula mass and mole calculations     Development of the periodic table     Groups and periods     Group 1 - the alkali metals     Group 7 - the halogens       Download the new Bitesize app now!   Revision on the go for GCSE, TGAU, Nat 4, Nat 5 & Higher   Get it here    Links   Bitesize GCSE Science - AQA    Bitesize GCSE Science - AQAFind old Science content, listed by exam board and spec, at URLs here.    GCSE Science - Edexcel GCSE Science - OCR Gateway GCSE Science - OCR 21st C       TES: Secondary Chemistry School Science Royal Society of Chemistry Education Quizzes: Chemistry Aptus Teach Subscription      GCSE Subjects     Architecture     Art and Design     Biology     Business     Chemistry     Computer Science     Design and Technology     Drama     Electronics     Engineering     English Language     English Literature     Food Technology     French     Geography     German     Graphics     History     ICT     Irish (Learners)     Mandarin     Maths (Wales – 2015 onwards)     Maths Numeracy (Wales – 2015 onwards)     Maths (pre-2015)     Maths (2015 onwards)     Media Studies     Modern Foreign Languages     Music     Physical Education     Physics     Product Design     PSHE and Citizenship     Religious Studies     Resistant Materials     Science     Sociology     Spanish     Systems and Control     Textiles     Welsh (Learners)       Languages: Cymraeg Gaeilge Gàidhlig   iWonderWhy do some people reject social media?bbc iwonderAre you getting enough sleep?bbc iwonderWhat's it like racing at 200mph?bbc

# data[].attributes.headline
Kian Baker. Particles and mixtures  You got 10 out of 10 (    1  When solid copper sulfate is added to water and stirred, what is the solute?  You said:   	The copper sulfate     Correct Solute is the term given to the solid in a solution, so the copper sulfate is the solute.  2  What term is given to the spreading out of particles through a liquid or gas?  You said:   	Diffusion     Correct Diffusion is when particles of one substance spread out between the particles of another substance.  3  What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?  You said:   	Compound     Correct A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.  4  Approximately how many elements are there?  You said:   	Approximately 100     Correct There are approximately 100 elements and they are listed on the periodic table.  5  What would be the best way to separate insoluble calcium carbonate powder from water?  You said:   	Filtration     Correct Filtration is the best way to separate an insoluble solid from a liquid.  6  Which method would you use to separate alcohol and water?  You said:   	Fractional distillation     Correct Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water.  7  In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?  You said:   	To prevent it washing away the spot of the coloured substance     Correct If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.  8  During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?  You said:   	0.75     Correct The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1.  9  Which of these words could be used to describe air?  You said:   	Mixture     Correct Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water.  10  How could a mixture of iron and sulfur be separated?  You said:   	Using a magnet     Correct Iron is magnetic but sulfur is not, so a magnet will allow you to separate them.)

# data[].attributes.subject
Kian Baker. Particles and mixtures  You got 10 out of 10 (    1  When solid copper sulfate is added to water and stirred, what is the solute?  You said:   	The copper sulfate     Correct Solute is the term given to the solid in a solution, so the copper sulfate is the solute.  2  What term is given to the spreading out of particles through a liquid or gas?  You said:   	Diffusion     Correct Diffusion is when particles of one substance spread out between the particles of another substance.  3  What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?  You said:   	Compound     Correct A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.  4  Approximately how many elements are there?  You said:   	Approximately 100     Correct There are approximately 100 elements and they are listed on the periodic table.  5  What would be the best way to separate insoluble calcium carbonate powder from water?  You said:   	Filtration     Correct Filtration is the best way to separate an insoluble solid from a liquid.  6  Which method would you use to separate alcohol and water?  You said:   	Fractional distillation     Correct Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water.  7  In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?  You said:   	To prevent it washing away the spot of the coloured substance     Correct If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.  8  During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?  You said:   	0.75     Correct The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1.  9  Which of these words could be used to describe air?  You said:   	Mixture     Correct Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water.  10  How could a mixture of iron and sulfur be separated?  You said:   	Using a magnet     Correct Iron is magnetic but sulfur is not, so a magnet will allow you to separate them.)

# data[].attributes.headline
Mrs Cork Particles and mixturesYou got 5 out of 101When solid copper sulfate is added to water and stirred, what is the solute?You said:   	The water    Incorrect Solute is the term given to the solid in a solution, so the copper sulfate is the solute. The solvent is water.2What term is given to the spreading out of particles through a liquid or gas?You said:   	Diffusion    Correct Diffusion is when particles of one substance spread out between the particles of another substance.3What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?You said:   	Compound    Correct A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.4Approximately how many elements are there?You said:   	Approximately 50    Incorrect There are approximately 100 elements and they are listed on the periodic table. 5What would be the best way to separate insoluble calcium carbonate powder from water?You said:   	Using a magnet    Incorrect Filtration is the best way to separate an insoluble solid from a liquid. A magnet can only be used to separate magnetic substances like iron, nickel and cobalt.6Which method would you use to separate alcohol and water?You said:   	Fractional distillation    Correct Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water.7In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?You said:   	To prevent it washing away the spot of the coloured substance    Correct If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.8During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?You said:   	0.75    Correct The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1.9Which of these words could be used to describe air?You said:   	Element    Incorrect Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water. The ancient Greeks thought that air was an element but we know now that it is not.10How could a mixture of iron and sulfur be separated?You said:   	Using filtration    Incorrect Iron is magnetic but sulfur is not, so a magnet will allow you to separate them. Both are insoluble, so you can't use filtration to separate them.

# data[].attributes.subject
Mrs Cork Particles and mixturesYou got 5 out of 101When solid copper sulfate is added to water and stirred, what is the solute?You said:   	The water    Incorrect Solute is the term given to the solid in a solution, so the copper sulfate is the solute. The solvent is water.2What term is given to the spreading out of particles through a liquid or gas?You said:   	Diffusion    Correct Diffusion is when particles of one substance spread out between the particles of another substance.3What name is given to a pure substance that is made from more than one element, chemically bonded in a fixed ratio?You said:   	Compound    Correct A compound is a pure substance that is made from more than one type of atom, chemically bonded in a fixed ratio.4Approximately how many elements are there?You said:   	Approximately 50    Incorrect There are approximately 100 elements and they are listed on the periodic table. 5What would be the best way to separate insoluble calcium carbonate powder from water?You said:   	Using a magnet    Incorrect Filtration is the best way to separate an insoluble solid from a liquid. A magnet can only be used to separate magnetic substances like iron, nickel and cobalt.6Which method would you use to separate alcohol and water?You said:   	Fractional distillation    Correct Fractional distillation allows you to separate different liquids from a mixture if they have different boiling points, like alcohol and water.7In paper chromatography, why should the level of the solvent in the beaker be below the pencil line on the paper?You said:   	To prevent it washing away the spot of the coloured substance    Correct If the spot of the coloured mixture touches the water it will get washed away and the chromatography won't work.8During paper chromatography, the solvent travelled 8 cm and the pigment travelled 6 cm. What is the Rf value?You said:   	0.75    Correct The Rf value is calculated by dividing the distance travelled by the pigment by the distance travelled by the solvent. It is always less than 1.9Which of these words could be used to describe air?You said:   	Element    Incorrect Air is a mixture of elements such as nitrogen and oxygen, together with compounds like carbon dioxide and water. The ancient Greeks thought that air was an element but we know now that it is not.10How could a mixture of iron and sulfur be separated?You said:   	Using filtration    Incorrect Iron is magnetic but sulfur is not, so a magnet will allow you to separate them. Both are insoluble, so you can't use filtration to separate them.