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

MCQ

CH1 - STATES OF MATTER

The diagram shows how the molecules in the exhaust gases diffuse into the air. Which statement describes what happens to these molecules next?

2009 Summer

MCQ

CH2 - SEPARATING SUBSTANCES

A student takes 2 g samples of calcium carbonate and adds them to 20 cm^3 samples of dilute hydrochloric acid at different temperatures. She measures ...

2009 Summer

MCQ

CH2 - SEPARATING SUBSTANCES

The diagram shows the paper chromatograms of four substances, W, X, Y and Z.Which two substances are pure?

2009 Summer

MCQ

CH3 - ATOMS AND ELEMENTS

An element S has the proton number 18. The next element in the Periodic Table is an element T. Which statement is correct?

2009 Summer

MCQ

CH3 - ATOMS AND ELEMENTS

Which numbers are added together to give the nucleon number of an ion?

2009 Summer

MCQ

CH3 - ATOMS AND ELEMENTS

The electronic configuration of an ion is 2.8.8. What could this ion be?[Table showing options for $S^{2-}$ and $Ca^{2+}$]

2009 Summer

MCQ

CH4 - ATOMS COMBINING

The diagrams show the structures of two forms, P and Q, of a solid element. What are suitable uses of P and Q, based on their structures?

2009 Summer

MCQ

CH4 - ATOMS COMBINING

Element V forms an acidic, covalent oxide. Which row in the table shows how many electrons there could be in the outer shell of an atom of V? [Table_1...

2009 Summer

MCQ

CH4 - ATOMS COMBINING

When sodium chloride is formed from its elements, each chlorine atom ...... 1 ...... one ...... 2 .......Which words correctly complete gaps 1 and 2?

2009 Summer

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Nitrogen and hydrogen react together to form ammonia.$N_2 + 3H_2 \rightarrow 2NH_3$When completely converted, 7 tonnes of nitrogen gives 8.5 tonnes of...

2009 Summer