Question

Reaction five example

Answer 1

Answer:

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Answer 2

Answer:

1. A combination reaction: 2Na(s)+Cl2(g)→2NaCl(s)
2. A decomposition reaction: 2HgO(s)→2Hg(l)+O2(g)
3. A single-replacement reaction : Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)
4. A double-replacement reaction: 2KI(aq)+Pb(NO3)2(aq)→2KNO3(aq)+PbI2(s)
5. A combustion reaction: 2H2(g)+O2(g)+2H2O(g)

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