Question

Write balanced chemical equations for the following reactions- a) Reactions between aluminium and steam b) Reactions between sodium sulphate and barium chloride. ​

Answer 1

Answer:

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A)Like the reaction between magnesium and water, it is possible to react aluminium with steam. However, the aluminium oxide produced forms a barrier on the surface of the aluminium which prevents further reaction. When aluminium reacts with steam, the products are aluminium oxide and hydrogen gas.

B)When barium chloride combines with sodium sulphate in the form of their aqueous solutions, a white precipitate of barium sulphate is formed which is insoluble in water. The reaction also creates sodium chloride, which remains dissolved in water and so cannot be seen. ... So this reaction is a chemical change.