1). Write a balanced equation for the single-replacement oxidation-reduction rea

Question

1). Write a balanced equation for the single-replacement oxidation-reduction reaction described, using the smallest possible integer coefficients. The reaction that takes place when manganese metal combines with aqueous hydrochloric acid. ____ + _____ ----> _____ + _____

2). Write a balanced equation for the single-replacement oxidation-reduction reaction described, using the smallest possible integer coefficients. The reaction that takes place when zinc metal combines with aqueous copper(II) sulfate . ____ + ___ ----> ___ + ____

3). Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of iron(III) iodide and potassium carbonate are combined. _____ + ______ ----> _____ + _____

4). Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of chromium(III) iodide and sodium hydroxide are combined. _____ + _____ ----> _____ + _____

Explanation / Answer

1. Hydrogen evolved

Mn(s)+2HCl(aq)=MnCl2(aq)+H2(g)

2. Displacement reaction

Zn(s)+CuSO4(aq)=Cu(s)+ZnSO4(aq)

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