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1

In which changes do the particles move further apart?

1. States of matter  →  1.1. Solids, liquids and gases

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2

In the chromatography experiment shown...

12. Experimental techniques and chemical analysis  →  12.3. Chromatography

12. Experimental techniques and chemical analysis  →  12.1. Experimental design

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3

One of the instructions for an experiment reads as follows. Quickly add 50 cm3 of acid. What is the best piece of apparatus to use?

12. Experimental techniques and chemical analysis  →  12.1. Experimental design

12. Experimental techniques and chemical analysis  →  12.2. Acid-base titrations

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4

Two statements about diamond are given. Diamond has a giant three-dimensional covalent structure of carbon atoms. Diamond is one of the hardest substances known. Which is correct?

2. Atoms, elements and compounds  →  2.6. Giant covalent structures

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5

The table shows the electronic structure of four atoms. atom electronic structure W 2,8,1 X 2,8,4 Y 2,8,7 Z 2,8,8 Which two atoms combine to form a covalent compound?

2. Atoms, elements and compounds  →  2.5. Simple molecules and covalent bonds

2. Atoms, elements and compounds  →  2.2. Atomic structure and the Periodic Table

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6

An atom of element Q contains 19 electrons, 19 protons and 20 neutrons. What is Q?

2. Atoms, elements and compounds  →  2.2. Atomic structure and the Periodic Table

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7

Lithium is in Group I of the Periodic Table. Nitrogen is in Group V of the Periodic Table. Lithium reacts with nitrogen to form the ionic compound lithium nitride. What happens to the electrons when lithium atoms and nitrogen atoms form ions?

2. Atoms, elements and compounds  →  2.4. Ions and ionic bonds

8. The Periodic Table  →  8.1. Arrangement of elements

12. Experimental techniques and chemical analysis  →  12.5. Identification of ions and gases

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8

The equation shows the reaction between magnesium and sulfuric acid. [Ar: H, 1; O, 16; Mg, 24; S, 32] Mg + H2SO4 → MgSO4 + H2 In this reaction, which mass of magnesium sulfate is formed when 6 g of magnesium react with excess sulfuric acid?

9. Metals  →  9.4. Reactivity series

6. Chemical reactions  →  6.3. Reversible reactions and equilibrium

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9

The diagram shows an electrical cable. metal core plastic coating Which statement about the substances used is correct?

9. Metals  →  9.2. Uses of metals

2. Atoms, elements and compounds  →  2.7. Metallic bonding

9. Metals  →  9.6. Extraction of metals

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10

What are the products at the electrodes when dilute sulfuric acid is electrolysed using inert electrodes?

4. Electrochemistry  →  4.1. Electrolysis

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11

The energy level diagram for the reaction between magnesium and hydrochloric acid is shown...

6. Chemical reactions  →  6.2. Rate of reaction

5. Chemical energetics  →  5.1. Exothermic and endothermic reactions

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12

The diagram shows some properties that substances may have. To which labelled part of the diagram does 235U belong?

10. Chemistry of the environment  →  10.1. Water

8. The Periodic Table  →  8.4. Transition elements

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13

A liquid X reacts with solid Y to form a gas. Which two diagrams show suitable methods for investigating the rate of the reaction?

6. Chemical reactions  →  6.2. Rate of reaction

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14

The results of two separate reactions between excess calcium carbonate and hydrochloric acid are shown...

6. Chemical reactions  →  6.2. Rate of reaction

9. Metals  →  9.4. Reactivity series

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15

The equations below all show redox reactions. Fe2O3 + 3CO → 2Fe + 3CO2 2ZnO + C → 2Zn + CO2 Fe2O3 + 2Al → Al 2O3 + 2Fe 2CO + 2NO → 2CO2 + N2 Which oxide is oxidised in these reactions?

6. Chemical reactions  →  6.4. Redox

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16

In which reaction is the colour change from blue to white?

6. Chemical reactions  →  6.3. Reversible reactions and equilibrium

10. Chemistry of the environment  →  10.1. Water

6. Chemical reactions  →  6.4. Redox

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17

Which statements are properties of an acid?

7. Acids, bases and salts  →  7.1. The characteristic properties of acids and bases

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18

Part of the Periodic Table is shown...

7. Acids, bases and salts  →  7.2. Oxides

2. Atoms, elements and compounds  →  2.2. Atomic structure and the Periodic Table

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19

What is the correct sequence of steps for the preparation of a pure sample of copper(sulfate crystals from copper(oxide and sulfuric acid?

7. Acids, bases and salts  →  7.3. Preparation of salts

4. Electrochemistry  →  4.1. Electrolysis

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20

The following tests are carried out on an aqueous solution of salt X. test observation sodium hydroxide solution is added a green precipitate is formed which dissolves in excess a small piece of aluminium foil is then added to the mixture and the mixture is heated a gas is given off which turns damp, red litmus paper blue What is X?

7. Acids, bases and salts  →  7.3. Preparation of salts

12. Experimental techniques and chemical analysis  →  12.5. Identification of ions and gases

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21

Where in the Periodic Table is the metallic character of the elements greatest?

8. The Periodic Table  →  8.1. Arrangement of elements

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22

Rubidium is a Group I metal. Which statement about rubidium is not correct?

2. Atoms, elements and compounds  →  2.2. Atomic structure and the Periodic Table

8. The Periodic Table  →  8.2. Group I properties

8. The Periodic Table  →  8.4. Transition elements

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23

The table gives information about four elements, P, Q, R and S. melting point in °C electrical conductivity of element when solid density in g / cm3 colour of iodide of element P good 0.97 white Q –39 good 13.53 red R poor 2.33 colourless S good 7.87 green Which elements could be transition elements?

8. The Periodic Table  →  8.4. Transition elements

8. The Periodic Table  →  8.1. Arrangement of elements

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24

Part of the Periodic Table is shown...

2. Atoms, elements and compounds  →  2.2. Atomic structure and the Periodic Table

11. Organic chemistry  →  11.3. Fuels

8. The Periodic Table  →  8.4. Transition elements

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25

Which property is not considered a typical metallic property?

9. Metals  →  9.3. Alloys and their properties

9. Metals  →  9.1. Properties of metals

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26

Some chemical properties of three metals W, X and Y and their oxides are shown...

9. Metals  →  9.4. Reactivity series

9. Metals  →  9.1. Properties of metals

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27

Iron from a blast furnace is treated with oxygen and with calcium oxide to make steel. Which substances in the iron are removed?

9. Metals  →  9.6. Extraction of metals

9. Metals  →  9.5. Corrosion of metals

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28

Copper is sometimes used to make cooking utensils. saucepan gas ring Three properties of copper are given. corrosion resistant good conductor of electricity good conductor of heat Which properties make copper a suitable metal for making cooking utensils?

9. Metals  →  9.3. Alloys and their properties

9. Metals  →  9.1. Properties of metals

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29

The diagram shows an experiment to investigate how paint affects the rusting of iron. air P Q water iron painted iron What happens to the water level in tubes P and Q?

9. Metals  →  9.5. Corrosion of metals

9. Metals  →  9.6. Extraction of metals

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30

A new planet has been discovered and its atmosphere has been analysed. atmosphere planet The table shows the composition of its atmosphere. gas percentage by volume carbon dioxide nitrogen oxygen Which gases are present in the atmosphere of the planet in a higher percentage than they are in the Earth’s atmosphere?

10. Chemistry of the environment  →  10.3. Air quality and climate

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31

Which of the following are tests for water?

10. Chemistry of the environment  →  10.1. Water

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32

Sulfur dioxide, carbon monoxide and oxides of nitrogen are common gaseous pollutants found in the air. Which pollutants contribute to acid rain?

10. Chemistry of the environment  →  10.3. Air quality and climate

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33

Which compound is not used as a fertiliser?

10. Chemistry of the environment  →  10.2. Fertilisers

7. Acids, bases and salts  →  7.3. Preparation of salts

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34

Lime (calcium oxide) is used to treat waste water from a factory. Which substance is removed by the lime?

12. Experimental techniques and chemical analysis  →  12.5. Identification of ions and gases

9. Metals  →  9.4. Reactivity series

4. Electrochemistry  →  4.1. Electrolysis

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35

The diagram shows the separation of petroleum into fractions. gasoline X Y Z bitumen petroleum What could X, Y and Z represent?

11. Organic chemistry  →  11.3. Fuels

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36

Which compound is not an alkane, CnH2n+2?

11. Organic chemistry  →  11.1. Formulae, functional groups and terminology

11. Organic chemistry  →  11.2. Naming organic compounds

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37

A hydrocarbon W burns to form carbon dioxide and water. W decolourises bromine water. What is the name of W and what is its structure?

11. Organic chemistry  →  11.2. Naming organic compounds

11. Organic chemistry  →  11.3. Fuels

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38

Which term describes the formation of ethanol from glucose?

11. Organic chemistry  →  11.6. Alcohols

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39

Ethene forms an addition polymer as shown...

11. Organic chemistry  →  11.8. Polymers

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40

Which statement about carboxylic acids is not correct?

11. Organic chemistry  →  11.7. Carboxylic acids

7. Acids, bases and salts  →  7.1. The characteristic properties of acids and bases

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