Translate the following statements into balanced chemical equations : 1.potassium bromide +barium iodide = potassium iodide + barium bromide 2.aqueous solution of sulphuric acid and sodium hydroxide reacts to form aqueous sodium sulphate and water. 3.phosphorus burns in oxygen to form phosphorus pentaoxide. 4.aluminum met replaces iron from ferric oxide.

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Solution

$1 . P o t a s s i u m b r o m i d e + B a r i u m i o d i d e = P o t a s s i u m i o d i d e + B a r i u m b r o m i d e K B r + B a I_{2} \to K I + B a B r_{2} 2 . S u l p h u r i c a c i d + S o d i u m h y d r o x i d e = S o d i u m s u l p h a t e + W a t e r H_{2} S O_{4} + 2 N a O H \to N a_{2} S O_{4} + 2 H_{2} O 3 . P h o s p h o r u s + O x y g e n = P h o s p h o r u s p e n t a o x i d e P_{4} + 5 O_{2} \to 2 P_{2} O_{5} 4 . A l u m i n u m m e t a l + F e r r i c o x i d e = A l u m i n i u m o x i d e + i r o n 2 A l + F e_{2} O_{3} = A l_{2} O_{3} + 2 F e$

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Translate the following statements into chemical equations and then balance the equations :

(a) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

(b) Phosphorus burns in oxygen to give phosphorus pentoxide.

(d) Aluminium metal replaces iron from ferric oxide, $F e_{2} O_{3}$ , giving aluminium oxide and iron.

(e) Barium chloride reacts with zinc sulphate to give zine chloride and barium sulphate.

1) zinc carbonate= zinc oxide+ carbon dioxide

2) potassium bromide+ barium iodide = potassium iodide + barium bromide

Balance the equations

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