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4 marksCharacteristics of Metals

CSEC Chemistry · May/June 2005 · Paper 2 · Question 5(d)

A compound of Q, suspected to be a nitrate, has also been detected on Mars.

How would the effect of heat on this metal nitrate of Q differ from that of sodium nitrate? Illustrate your answer by means of suitable chemical equations. Effect of heat on sodium nitrate: _____. Effect of heat on the nitrate of Q: _____.

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Other parts of this question

  1. 5(a)Would Q be electrically conducting or not? Give a reason for your answer.[2 marks]
  2. 5(b)State the expected reaction of Q with water. Include a chemical equation.[3 marks]
  3. 5(c)Further investigations reveal that on exposure to oxygen, the metal Q becomes chemically inert. State a possible reason for this.[2 marks]
  4. 5(e)Briefly outline how a dry sample of the sulphate of Q can be prepared from a sample of the metal nitrate of Q. Include an ionic equation to illustrate your…[4 marks]

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