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 diagram shows the result of dropping a purple crystal into water. Which processes take place in this experiment?

2014 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

The four pieces of apparatus shown below are used in chemical experiments. Which statement about the apparatus is correct?

2014 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

Alcohol and water are completely miscible. This means when mixed together they form only one liquid layer. Which method is used to separate alcohol fr...

2014 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

The diagram shows the structure of an atom of element X. What is X?

2014 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

The diagrams show four particles.Which two diagrams show atoms that are isotopes of each other?

2014 Summer

1

MCQ

CH4 - ATOMS COMBINING

The 'lead' in a pencil is made of a mixture of graphite and clay. When the percentage of graphite is increased, the pencil slides across the paper mo...

2014 Summer

2

MCQ

CH4 - ATOMS COMBINING

Element X is in Group I of the Periodic Table. X reacts with element Y to form an ionic compound.Which equation shows the process that takes place whe...

2014 Summer

1

MCQ

CH4 - ATOMS COMBINING

Solid F is an element. Solid G is a compound. Neither solid conducts electricity but G conducts electricity when dissolved in water. These properties ...

2014 Summer

1

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

A compound contains one atom of calcium, two atoms of hydrogen and two atoms of oxygen. What is the correct chemical formula of the compound?

2014 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

In athletics, banned drugs such as nandrolone have been taken illegally to improve performance. Nandrolone has the molecular formula $C_{18}H_{26}O_2$...

2014 Summer

1