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

1

MCQ

CH1 - STATES OF MATTER

The diagram shows a cup of tea. Which row describes the water particles in the air above the cup compared with the water particles in the cup? [Tabl...

2013 Summer

1

MCQ

CH11 - ACIDS AND BASES

Crystals of sodium chloride were prepared by the following method.1. 25.0 cm3 of dilute hydrochloric acid was accurately measured into a conical flask...

2013 Summer

2

MCQ

CH11 - ACIDS AND BASES

Lead iodide is insoluble in water. Lead iodide is made by adding aqueous lead nitrate to aqueous potassium iodide. Which pieces of apparatus are neede...

2013 Summer

3

MCQ

CH3 - ATOMS AND ELEMENTS

Element X is represented by $^{27}_{13}\text{X}$.Which statement about element X is correct?

2013 Summer

2

MCQ

CH12 - THE PERIODIC TABLE

The positions of four elements are shown on the outline of the Periodic Table.Which element forms a coloured oxide?

2013 Summer

2

MCQ

CH4 - ATOMS COMBINING

For which substance is the type of bonding not correct? [Table_1]

2013 Summer

1

MCQ

CH4 - ATOMS COMBINING

Element X has six electrons in its outer shell. How could the element react?

2013 Summer

3

MCQ

CH1 - STATES OF MATTER

The diagram shows an incomplete circuit. Which substance causes the lamp to light when added to the glass tube?

2013 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

A compound with the formula $XF_2$ has a relative formula mass of 78. What is element X?

2013 Summer

1

MCQ

CH13 - THE BEHAVIOR OF METALS

What is the balanced chemical equation for the reaction between calcium and water?

2013 Summer

2