Aqa Science Igcse Chem w Cert

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AQA Education (AQA) is a registered charity (number 1073334) and a company limited by guarantee registered in England and Wales (number 3644723). Our registered address is AQA, Devas Street, Manchester M15 6EX. v1.1

AQA Certificate in Chemistry

Comparison of content with GCSE Chemistry

This document indicates the origin of each knowledge statement in the AQA Certificate in Chemistry.

Many of the knowledge statements are identical to those in GCSE Chemistry, including any additional guidance.

Some of the statements have been reworded into the Certificate style, although the knowledge required is unchanged.

Some statements have been amended (deletions or additions made) for the Certificate; amendments have been summarised inthe Further information column.

This document is a complete revision of the previously published version.

This document does not replace the specification, which remains the definitive source of i nformation.


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Section in AQACertificate

in Chemistry

Section in GCSE Chemistry Further information

Unit 1 Unit 2 Unit 3

1.1 Solids, liquids andgases All new

1.1a

1.1b

1.2 Atoms C1.1.1 Atoms C2.3.1 Atomi cstructure

1.2a

1.2b

1.2c

1.2d

1.2e

1.2f

1.2g

1.2h

1.2i

1.2j

1.2k

1.2l

C1.1.1a

C1.1.1b

C1.1.1c

C1.1.1d

C1.1.1e

C1.1.1g

C1.1.1f

C1.1.1h

C2.3.1d

C2.3.1a

C2.3.1b

C2.3.1e Additional Guidance new


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1.3 Chemicalreactions and relatedcalculations

1.1.3 Chemicalreactions 2.3.1 Atomicstructure;2.3.3 Quantitativechemistry

Some new content

1.3a

1.3b

1.3c

1.3d

1.3e

1.3f

1.3g1.3g

1.3i

1.3j

1.3k

1.3l

C1.1.3a

C1.1.3b

C1.1.3c

C2.3.1f

C2.3.1g

C2.3.3a

C2.3.3b

C2.3.3c

C2.3.3d

C2.3.3e

C2.2.3f

Second sentence expanded

Additional Guidance new

New Additional Guidance deleted

2.1 Bonding C2.1.1 Structure andbonding

Small amount of new content

2.1a

2.1b

2.1c

2.1d

2.1e

2.1f

2.1g

2.1h

C2.1.1a

C2.1.1b

C2.2.1c

C2.1.1d

C2.1.1e

C2.1.1f

C2.1.1g

Last sentence new. Diagram from C2.1 intro

Additional Guidance deleted

Statement new. Diagram from C2.1 intro


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2.2 Structure and howit influences theproperties and usesof substances

C2.2.1 Molecules;C2.2.2 Ioniccompounds;C2.2.3 Covalentstructures;C2.2.6 Nanoscience

2.2a

2.2b

2.2c

2.2d

2.2e

2.2f

2.2g

2.2h

2.2i

2.2j

2.2k

C2.2.2a

C2.2.2b

C2.2.1a

C2.2.1b

C2.2.1c

C2.2.3a

C2.2.3b

C2.2.3c

C2.2.3d

C2.2.3e

C2.2.6a

3.1 Air and oxygen All new

3.1a

3.1b

3.1c

3.1d

3.1e

3.1f


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3.2 Water C3.2.2 Purif ying water Some new content3.2a

3.2b

3.3c

3.3d

C3.2.2a part

C3.2.2b

C3.2.2c

New

3.3 Rusting All new

3.3a

3.3b

4.1 The periodic table C1.1.2 The periodictable

Some new content

4.1a

4.1b

4.1c

C1.1.2a

C1.1.2b

New


4.2 Trends wit hin t heperiodic table

C3.1.3 Trends withinthe periodic table

4.2a

4.2b

4.2c

4.2d

4.2e

4.2f

4.2g

4.2h

C3.1.3a

C3.1.3b

C3.1.3c

C3.1.3d

C3.1.3e

C3.1.3f

C3.1.3g

C3.1.3h

Second bullet point removed


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5.1 Acids, bases andsalts C1.2.1 Calciumcarbonate

C2.6.2 Acids and

bases C3.4.1 Analysingsubstances Small amount of new content

5.1a

5.1b

5.1c

5.1d

5.1e

5.1f

5.1g

5.1h

5.1i

C1.2.1e

C2.6.2a

C2.6.2b

C2.6.2c

C2.6.2d

C2.6.2e

C3.4.1g

C3.4.1e

New

5.2 Making salts C2.6.1 Making salts

5.2a

5.2b

5.2c

C2.6.1b

C2.6.1c

C2.6.1d

5.3 Metal carbonates C1.2.1 Calciumcarbonate

Some new content

5.3a

5.3b

5.3c

C1.2.1c

C1.2.1f

C1.2.1a

Sodium replaced by lithium

Second sentence and Additional Guidance

deletedFurther uses of limestone given


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6.1 The reactivityseries

All new

6.1a

6.1b

6.1c

6.2 Extracti ng metals C1.3.1 Extracti ngmetals

Some new content

6.2a

6.2b

6.2c6.2d

6.2e

6.2f

6.2g

6.2h

C1.3.1c

C1.3.1d

C1.3.1eC1.3.1f

C1.3.1g

C1.3.1h part

C1.3.1h part

C1.3.1j

Additional Guidance changed

Additional Guidance changed


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6.3 Structure andbonding in metalsand alloys

C1.3.2 Allo ys C2.1.1 Struct ure andbonding;C2.2.4 Metals

6.3a

6.3b

6.3c

6.3d

6.3e

6.3f

6.3g

C1.3.2c

C2.1.1h

C2.1.1i

C2.2.4a

C2.2.4b

C2.2.4c

C2.2.4d

Diagram from intro to C2.1

6.4 Properties anduses of metals

C1.3.2 Alloys;C1.3.3 Properties anduses of metals

6.4a

6.4b

6.4c

6.4d

C1.3.1a

C1.3.2a

C1.3.2b

C1.3.3b

Slight rewording


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7 Rates of reaction C2.4.1 Rates ofreaction

7a

7b

7c

7d

7e

7f

7g

7h

C2.4.1a

C2.4.1b

C2.4.1c

C2.4.1d

C2.4.1e

C2.4.1f

C2.4.1g

C2.4.1h

Additional Guidance from C2.4 intro

8.1 Crude oil C1.4.1 Crude oil ;C1.4.2 Hydrocarbons

8.1a

8.1b

8.1c

C1.4.1a

C1.4.1c part

C1.4.2b


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8.2 Hydrocarbons C1.4.1 Crude oil ;C1.4.2 Hydrocarbons

8.2a

8.2b

8.2c

C1.4.1c part

C1.4.2a

C1.4.2c

8.3 Fuels C1.4.3 Hydrocarbonfuels

C3.3.1 Energy fromreactions


8.3a

8.3b

8.3c

8.3d

8.3e

8.3f

C1.4.3a

C1.4.3b

C1.4.3c

C1.4.3d

C1.4.3e

C3.3.1i

Additional Guidance from C1.4 intro


9.1 Obtaining usefulsubstances fromcrude oil

C1.5.1 Obtaininguseful substancesfrom crude oil;C1.5.3 Ethanol

9.1a

9.1b

9.1c

9.1d

9.1e

9.1f

C1.5.1a

C1.5.1b

C1.5.1c

C1.5.1d

C1.5.1e

C1.5.3a

Additional Guidance moved to 9.1c and new Additional Guidance given

Additional Guidance inserted from C1.5.1b


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9.2 Polymers C1.5.2 Polymers C2.2.5 Polymers

9.2a

9.2b

9.2c

9.2d

9.2e

9.2f

C1.5.2a

C1.5.2b

C1.5.2c

C1.5.2d

C2.2.5a

C2.2.5b

Last sentence in Additional Guidance new

10.1 Alcohols C3.6.1 Alcohols

10.1a

10.1b

10.1c

C3.6.1a

C3.6.1b

C3.6.1c

Representations from C3.6 intro


10.2 Carboxylic acids C3.6.2 Carboxylicacids


10.2a

10.2b

C3.6.2a

C3.6.2b

Representations from C3.6 intro


10.3 Esters C3.6.3 Esters Some new content

10.3a

10.3b

C3.6.3a part

C3.6.3a part

Representations of esters new

11.1 Exothermic andendothermicreactions

C2.5.1 Energy transferin chemical reactions

11.1a

11.1b

11.1c

11.1d

C2.5.1a

C2.5.1b

C2.5.1c

C2.5.1d


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11.2 Calculating andexplaining energychanges

C3.3.1 Energy fromreactions


11.2a

11.2b

11.2c

11.2d

11.2e

11.2f

11.2g

11.2h

C3.3.1a

C3.3.1b

C3.3.1c

C3.3.1d

C3.3.1e

C3.3.1f

C3.3.1g

C3.3.1h


12 The product ion ofammonia

C3.5.1 Makingammonia

Small amount of new material

12a

12b

12c

12d

12e

12f

12g

12h

C3.5.1a

C3.5.1b

C3.5.1c

C3.5.1d

C3.5.1e

C3.5.1f

C3.5.1g

C3.5.1h

Second bullet point new


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13 Electrolysis C2.7.1 Electrolysis Some new content

13a

13b

13c

13d

13e

13f

13g

13h

13i

13j

C2.7.1a

C2.7.1b

C2.7.1c

C2.7.1e

C2.7.1g

C2.7.1f

C2.7.1d

C2.7.1h

C2.7.1i

New

Second bullet point new

Last sentence in Additional Guidance new

14.1 Analysingsubstances

C3.4.1 Analysingsubstances

14.1a

14.1b

14.1c

14.1d

14.1e

14.1f

C3.4.1a

C3.4.1b

C3.4.1c

C3.4.1d

C3.4.1e

C3.4.1f

14.2 Analysis ofmixtures

C1.4.1 Crude oil C2.3.2 Analys ingsubstances

Some new content

14.2a

14.2b

14.2c

14.2d

C1.4.1b

C2.3.2a

C2.3.2c

New


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Aqa Science Igcse Chem w Cert