Quelpr
3 marksStructure and Bonding

CSEC Chemistry · May/June 2014 · Paper 2 · Question 2(c)

Sodium reacts with Element Z to form a compound. State whether this compound is ionic or covalent, and explain your answer.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 2(a)(i)Based on the position of Element X in the Periodic Table, state whether it would react more vigorously or less vigorously with water than K would react.[1 mark]
  2. 2(a)(ii)Would the solution formed from the reaction of X with water be acidic or basic? Explain your answer.[1 mark]
  3. 2(b)(i)Write the electronic configuration for magnesium.[1 mark]
  4. 2(b)(ii)Based on the position of Element Q, write the formula for its carbonate. Formula:[1 mark]
  5. 2(b)(iii)Write a balanced chemical equation for the reaction of the carbonate of Q with dilute hydrochloric acid. Equation:[2 marks]
  6. 2(d)(i)What visible change would be observed when calcium nitrate decomposes?[1 mark]
  7. 2(d)(ii)If 5.0 grams of calcium nitrate are decomposed completely, calculate the volume of nitrogen dioxide produced at RTP. [One mole of a gas occupies 24 000 cm³ at…[3 marks]

More practice: the rest of this paper · more Structure and Bonding questions · all CSEC Chemistry past papers