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2 marksUses of Metals

CSEC Chemistry · May/June 2009 · Paper 2 · Question 6(b)(ii)

Cement is the binding agent in concrete.

Identify TWO OTHER ingredients used to make concrete.

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Other parts of this question

  1. 6(a)(i)Briefly explain what is meant by EACH of the following terms as they relate to pottery production. Plasticity Porosity Vitrification[3 marks]
  2. 6(a)(ii)Suggest ONE reason why EACH of the following makes clay a suitable substance for the making of pottery. Plasticity Porosity[2 marks]
  3. 6(b)(i)Name ONE component of cement.[1 mark]
  4. 6(b)(iii)Explain to Mr. Smith why it is necessary to dampen the concrete floor. Suggest to Mr. Smith what may occur if he decides NOT to dampen the floor.[4 marks]
  5. 6(c)Suggest if it would be appropriate to dampen clay while hardening. Give ONE reason for your answer.[3 marks]

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