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The flow chart below shows the manufacture of sodium carbonate. Study it carefully and answer the questions that follow.

The flow chart below shows the manufacture of sodium carbonate. Study it carefully and
answer the questions that follow.

a)
i). What is ammoniacal brine?
ii). Ammoniacal brine reacts with carbon (IV) oxide to form a mixture of two salts
which produce Q. Write an equation to show formation of Q
Name two processes that are used to separate Q into NH₄Cl and P
b) Give two uses of sodium carbonate produced in the process.
c)i). Name the substance that reacts with water that comes into the slaker
ii). What happens at the kiln?
d) Write an equation for the reaction that occurs when P is heated to form solid
Na₂ CO₃
e) Name two substances that are recycled in the process.

Answers

a) (i) Mixture of brine (concentrated NaCl) and Ammonia

(b) (i) Manufacture of glass
(ii) Softening of water
(c) (i) Calcium oxide
(ii) Calcium Carbonate decomposes on heating to give CO₂

(e) Ammonia and Carbon(IV) oxide

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sharon kalunda answered the question on May 16, 2019 at 14:00

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