Question

2 points
Q4. Write balanced chemical
equations for the following
reactions. a)Reaction between
aluminium and steam.
b) Reaction between sodium
sulphate and barium chloride​

Answer 1

Answer:

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.

Answer 2

Answer

2Al+3H2O→Al2O3+3H2

BaCl2+Na2SO4→BaSO4↓+2NaCl

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