MEDIUM
AS and A Level
IMPORTANT
Earn 100
Lithium also reacts with chlorine. Write the balanced symbol equation, including state symbols, for this reaction.
Important Questions on Periodicity
MEDIUM
AS and A Level
IMPORTANT
The Group 2 metal calcium reacts more vigorously with cold water than magnesium does, forming an alkaline solution. Write the balanced symbol equation, including state symbols, for this reaction.
MEDIUM
AS and A Level
IMPORTANT
The solution formed when of calcium react completely with of water is more alkaline than the solution formed when of magnesium react completely with of water. Explain why?
MEDIUM
AS and A Level
IMPORTANT
The element germanium is in Group 14, in Period 4. It is classed as a semimetal or metalloid, as is silicon in Period 3.
Predict the chemical bonding and structure of the element germanium.
MEDIUM
AS and A Level
IMPORTANT
The element germanium is in Group 14, in Period 4. It is classed as a semimetal or metalloid, as is silicon in Period 3.
Germanium(IV) oxide has properties similar to silicon dioxide. It is an acidic oxide. Write a balanced symbol equation, including state symbols, to show the reaction of germanium(IV) oxide with hot, concentrated sodium hydroxide solution.
MEDIUM
AS and A Level
IMPORTANT
The element germanium is in Group 14, in Period 4. It is classed as a semimetal or metalloid, as is silicon in Period 3.
What would you expect to happen if germanium(IV) oxide was added to hydrochloric acid?
MEDIUM
AS and A Level
IMPORTANT
Which one of these statements is completely correct?
MEDIUM
AS and A Level
IMPORTANT
The chloride of an unknown element, X, is a liquid at . This chloride reacts with water, giving off white fumes and leaving an acidic solution.
i) Does element X belong to Group 1, Group 2 or Group 15 of the Periodic Table?
ii) What type of reaction takes place between X and water?
iii) Identify the white fumes given off when X reacts with water.
MEDIUM
AS and A Level
IMPORTANT
The chloride of an unknown element Y is a solid at . This chloride does not react with water but dissolves to give a neutral solution. Does element Y belong to Group 1, Group 14 or Group 16 of the Periodic Table?
