Write formulas for the reactants and predicted products for the chemical reactions. Assume that in all...

Write formulas for the reactants and predicted products for the chemical reactions. Assume that in all cases a reaction occurs. The equation needs to be balanced and descriptive symbols included. Write all substances in their proper form - as ions if appropriate - and cancel any spectator ions.

e) A small piece of sodium metal is added to distilled water

f) Solid barium oxide is added to distilled water

g) Solid ammonium carbonate is heated

h) Solutions of manganese (II) sulfate and ammonium sulfide are mixed

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Expert Solution

Answer:-

(e) A small piece of sodium metal is added to the distilled water.

2Na_(s) + 2H₂O_(l) 2Na⁺_(aq) + 2OH^-_(aq) + H_2(g)

(f) Solid barium oxide is added to the distilled water.

BaO_(s) + H₂O_(l) 2Ba²⁺_(aq) + 2OH^-_(aq)

(g) Solid ammonium carbonate is heated.

(NH₄)₂CO₃_(s) 2NH_3(g) + CO_2(g) + H₂O_(l)

(h) Solutions of manganese (II) sulfate and ammonium sulfide are mixed.

2MnSO₄_(s) + (NH₄)₂S_(l) 2MnS_(s) + 2NH₄⁺_(aq) + 2SO₄^--_(aq)

above equation can be written as follows:-

2Mn²⁺_(aq) + 2SO₄^2-_(aq) + 2NH₄⁺_(aq) + S^--_(aq) 2MnS_(s) + 2NH₄⁺_(aq) + 2SO₄^--_(aq)

In above reaction ammonium ion[ NH₄⁺_(aq) ] and sulphate ion [ SO₄^--_(aq) ] are the spectator ions which exist as same form in both reactant and product sides of a chemical reaction therefore they may be cancel out in the reaction.

then above equation can be written as follows:-

2Mn²⁺_(aq)+ S^2-_(aq) 2MnS_(s)

queen_honey_blossom answered 1 year ago

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