MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Three processes are listed. burning methane in air radioactive decay of $^{235}U$ reacting hydrogen with oxygen. Which statements about these proc...

2011 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Solutions of two chemicals are mixed.A reaction occurs and the temperature change is measured.Which statement is correct?

2014 Summer

3

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Statement 1 Hydrogen is used as a fuel.Statement 2 When hydrogen burns in the air to form water, heat energy is produced. Which is correct?

2013 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The equation for the effect of heat on hydrated sodium carbonate is as shown.$$\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}(s) \rightleftharpoons...

2011 Summer

2

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Power stations produce electrical energy from different fuels. Which fuel causes least pollution to the atmosphere?

2014 Summer

2

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Which substance does not require oxygen in order to produce energy?

2013 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The diagram shows the reaction between zinc oxide and dilute hydrochloric acid.Which terms describe the reaction?

2012 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The diagram shows some properties that substances may have.To which labelled part of the diagram does $^{235}\text{U}$ belong?

2009 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Butane, ethanol and hydrogen are fuels.Which substances produce both carbon dioxide and water when used as a fuel?[Table_1]

2011 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Which diagram shows a process in which an endothermic change is taking place?

2009 Summer

2

Theory

CH4 - ATOMS COMBINING

(a) A list of compounds is shown.aluminium oxidecalcium bromidecalcium oxideethaneethenehydrogen chloridemethanenitrogen dioxidepotassium iodidepotass...

2020 Spring

1

Theory

CH14 - MAKING USE OF METALS

Iron is extracted by heating a mixture of coke (carbon), limestone and iron ore in air in a blast furnace.A diagram of the blast furnace is shown.(a) ...

2020 Spring

1

Theory

CH15 - AIR AND WATER

Water is essential for many industrial processes.(a) State one use of water in industry..................................................................

2020 Spring

1

Theory

CH17 - ORGANIC CHEMISTRY

Angelic acid and ethanoic acid are both carboxylic acids.The structure of angelic acid is shown.(a) (i) On the structure of angelic acid, draw a circl...

2020 Spring

2

Theory

CH12 - THE PERIODIC TABLE

The table shows some properties of four metals in Group I of the Periodic Table.[Table_1](a) Complete the table to estimate:• the melting point of r...

2020 Spring

2

Theory

CH11 - ACIDS AND BASES

This question is about the reactions of magnesium with nitric acid.(a) The equation for the reaction of magnesium with concentrated nitric acid is sho...

2020 Spring

2

Theory

CH1 - STATES OF MATTER

(a) The electrolysis of dilute sulfuric acid produces gases at both electrodes.(i) The incomplete apparatus is shown.Complete the diagram by:- labelli...

2020 Spring

2

Theory

CH4 - ATOMS COMBINING

(a) The structures of four substances C, D, E and F, are shown.(i) Which one of these substances, C, D, E or F, is a gas at room temperature?............

2020 Spring

2

MCQ

CH1 - STATES OF MATTER

Nitrogen is heated in a balloon, which expands slightly. Which statements about the molecules of nitrogen are correct? 1. They move further apart. 2...

2020 Summer

2

MCQ

CH1 - STATES OF MATTER

Which piece of apparatus should be used to measure exactly 21.4 \text{ cm}^3 of water?

2020 Summer

1