For questions # 1-5 classify each of the chemical reactions as redox, precipitat

Question

For questions # 1-5 classify each of the chemical reactions as redox, precipitation, acid-base, or complex ion formation reaction.  Also indicate whether the reaction is a combination, decomposition, or displacement reaction where applicable.

1-

                                                                    

2-

                                                                    

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K H CO3(aq) + HNO3(aq) rightarrow K NO3(aq) + H2O(i) + CO2(g) 3 Ca(s) + 2 Al3+(aq) rightarrow 3 Ca2+(aq) + 2 Al(s) Zn(OH)2(s) + 2 OH-(aq) rightarrow [Zn(OH)4]2+(aq) Ca(s) + H2(g) rightarrow CaH2(s) 2 Cl-(aq) + Pb2+(aq) rightarrow PbCl2(s)

Explanation / Answer

1)acid- base reaction (displacement)

2)redoxreaction(displacement reaction)

3) precipitation(combination)

4)redoxreaction(combination)

5) displacement reaction (combination)

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