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

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

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

2009 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The equation shows a reaction that is reversed by changing the conditions. forward reaction$\text{CuSO}_4·5\text{H}_2\text{O} \rightarrow \text{CuSO...

2009 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

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

2009 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

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

2009 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The equation shows a reaction that is reversed by changing the conditions.forward reaction$\text{CuSO}_4\cdot5\text{H}_2\text{O} \rightarrow \text{CuS...

2009 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Substance X requires oxygen in order to produce energy.It does not form carbon dioxide as a result of this energy production.What is substance X?

2009 Winter

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

When an acid is added to an alkali the temperature rises. Which words describe this reaction?

2009 Winter

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

When blue copper(II) sulfate is heated, a white solid and water are formed. The white solid turns blue and gives out heat when water is added to it.Wh...

2009 Winter

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

When an acid is added to an alkali the temperature rises.Which words describe this reaction?

2009 Winter

Theory

Transition Elements

The diagram shows part of the Periodic Table.Answer the following questions using only the symbols of the elements in the diagram. Each symbol may be ...

2021 Spring

Theory

CH3 - ATOMS AND ELEMENTS

The table shows the mass of some of the ions in a 1000 cm$^3$ sample of sea water.[Table_1](a) Answer these questions using only the information in th...

2021 Spring

Theory

Transition Elements

The table shows some properties of four halogens.(a) (i) Complete the table by predicting:• the boiling point of chlorine• the density of fl...

2021 Spring

Theory

CH10 - THE SPEED OF A REACTION

A student investigates the reaction of magnesium powder with dilute hydrochloric acid. The magnesium is in excess.Mg + 2HCl → MgCl2 + H2The rate of ...

2021 Spring

Theory

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

This question is about sulfur and compounds of sulfur.(a) Sulfur is a non-metal. Describe three physical properties which are typical of non-metals.1 ...

2021 Spring

Theory

Plastics

The structure of compound A is shown. (a) (i) On the structure of compound A, draw a circle around the carboxylic acid functional group. [1] (ii) ...

2021 Spring

Theory

CH1 - STATES OF MATTER

Sodium is manufactured by electrolysis.(a) Explain why sodium is manufactured by electrolysis and \textbf{not} by reduction with carbon..................

2021 Spring

Theory

Chemical Properties of Acids and Bases

Aqueous ammonia is an alkali.(a) Complete the dot-and-cross diagram to show the electron arrangement in a molecule of ammonia.(b) Complete the word eq...

2021 Spring

MCQ

CH1 - STATES OF MATTER

Which row describes the arrangement and movement of particles in a liquid?[Table_1]

2021 Summer

MCQ

CH2 - SEPARATING SUBSTANCES

A mixture is separated using the apparatus shown. What is the mixture?

2021 Summer