Chemistry 9701/43 — October/November 2013
Cambridge A-Level · A Level Structured Questions · worked solutions for every part, with the mark scheme
Topics Introduction to A Level Organic Chemistry · Group 2 · Reaction Kinetics · Equilibria · Hydrocarbons · Nitrogen Compounds · +6 more
The nitrate ion, , contains a dative covalent bond.
Complete the following ‘dot-and-cross’ diagram of the bonding in the nitrate ion. For each of the four atoms show all the electrons in its outer shell. Three electrons have already been included.
Use the following code for your electrons.
- electrons from oxygen
- electrons from nitrogen
- added electron(s) responsible for the overall negative charge
Write an equation showing the action of heat on magnesium nitrate, .
Describe and explain the trend that is observed in the thermal stabilities of the Group II nitrates.
When concentrated nitric acid, , is added to copper turnings, a brown gas is evolved. Use data from the Data Booklet to construct an ionic equation for this reaction.
The rest of this paper
8 more questions- Q2Reaction Kinetics · Equilibria · Hydrocarbons7M
- Q3Chemical Energetics · Electrochemistry15M
- Q4Group 26M
- Q5Hydroxy Compounds · Introduction to A Level Organic Chemistry · Hydrocarbons · Carboxylic Acids and Derivatives16M
- Q6Equilibria · Nitrogen Compounds · Introduction to A Level Organic Chemistry17M
- Q7Reaction Kinetics · Nitrogen Compounds10M
- Q8Analytical Techniques · Introduction to A Level Organic Chemistry10M
- Q9Introduction to A Level Organic Chemistry10M