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(a) In Kenya, sodium carbonate is extracted from trona at Lake Magadi.
(i) Give the formula of trona.
(ii) Name the process of extracting sodium carbonate from trona.
(b) The flow chart in Figure 5 summarises the steps involved in the production of sodium carbonate. Use it to answer the questions that follow.
(i) Name the process illustrated in Figure 5.
(ii) Identify the starting raw materials required in the production of sodium carbonate.
(iii) Write equations for the two reactions that occur in the carbonator.
(iv) Name two substances that are recycled.
(v) Identify: Solid X
Process W
(vi) Write an equation for the reaction that produces solution Z.
(vii) Apart from softening hard water, state two other uses of sodium carbonate.