Quelpr
3 marksStates of Matter

CSEC Chemistry · January 2021 · Paper 2 · Question 4(c)(i)

Observations in a Home Economics class: Observation 1: Cucumber slices release water when salt is added. Observation 2: Peas swell when soaked in water.

Explain the chemical process that can account for these observations.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 4(a)(i)Complete Table 3 showing the three subatomic particles and their relative masses and charges.[4 marks]
  2. 4(a)(ii)Consider the notation of an atom of an unknown element, ²⁹₁₄A. Draw a labelled diagram to illustrate the location, arrangement and number of EACH type of…[5 marks]
  3. 4(b)Calculate the number of atoms in 80.0 g of calcium. [Relative atomic mass of Ca = 40; Avogadro's constant = 6.0 × 10²³][2 marks]
  4. 4(c)(ii)State ONE other example that demonstrates this process.[1 mark]

More practice: the rest of this paper · more States of Matter questions · all CSEC Chemistry past papers