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

1

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Which relative molecular mass, $M_r$, is \textbf{not} correct for the molecule given?[Table_1]

2009 Summer

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

What is the relative molecular mass ($M_r$) of HNO$_3$?

2011 Summer

1

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Hydrogen and chlorine react as shown. 1 molecule of hydrogen + 1 molecule of chlorine → 2 molecules of hydrogen chloride What is the equation for ...

2010 Summer

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

The equation shows the reaction between magnesium and sulfuric acid. $\text{Mg} + \text{H}_2\text{SO}_4 \rightarrow \text{MgSO}_4 + \text{H}_2$ $(\tex...

2013 Summer

1

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

What is the relative molecular mass, $M_r$, of nitrogen dioxide?

2014 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

For each atom of carbon present in a molecule, there is an equal number of atoms of oxygen but twice as many atoms of hydrogen. What is the formula of...

2009 Winter

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Which relative molecular mass, $M_r$, is \textit{not} correct for the molecule given?[Table_1]

2013 Winter

3

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Water is formed when 48 g of oxygen combine with 6 g of hydrogen.What mass of oxygen combines with 2 g of hydrogen?

2009 Winter

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Iron forms an oxide with the formula $Fe_2O_3$.What is the relative formula mass of this compound?

2014 Winter

1

MCQ

CH1 - STATES OF MATTER

The diagrams show the arrangement of particles in three different physical states of substance X.Which statement about the physical states of substanc...

2011 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

An aqueous solution is coloured.Which method of separation would show that the solution contains ions of different colours?

2011 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

The table gives the solubility of four substances in ethanol and in water.A mixture containing all four substances is added to ethanol, stirred and fi...

2011 Summer

2

MCQ

CH4 - ATOMS COMBINING

Which two elements react together to form an ionic compound?[Table_1]element | electronic structure---------|---------------------W | 2,4X ...

2011 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

The diagram shows part of the Periodic Table. Which element is correctly matched with its electronic structure?

2011 Summer

1

MCQ

CH4 - ATOMS COMBINING

In the diagrams, circles of different sizes represent atoms of different elements. Which diagram represents hydrogen chloride gas?

2011 Summer

2

MCQ

CH4 - ATOMS COMBINING

The nucleon number and proton number of the lithium atom are shown by the symbol $^7_3\text{Li}$. What is the correct symbol for the lithium ion in l...

2011 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

What is the relative molecular mass ($M_r$) of $HNO_3$?

2011 Summer

1

MCQ

CH14 - MAKING USE OF METALS

Electricity from a power station passes through overhead cables to a substation and then to a school where it is used to electrolyse concentrated hydr...

2011 Summer

1

MCQ

CH1 - STATES OF MATTER

Which statement about the electrolysis of molten lead(II) bromide is correct?

2011 Summer

2