PLEASE WASH AND DRY YOUR HANDS!! CONCLUSIONS o Write a chemicalequation for each

Question

PLEASE WASH AND DRY YOUR HANDS!! CONCLUSIONS o Write a chemicalequation for each reaction you tried o Write "no reaction" for ones that did not form products. (activity series pg.288, solu o For the ones that did react, write a balanced chemical equation (include subscripts ( o Next to each reaction, write a brief statement explaining why there was "reaction m activity series on pg.288 and solubility rules on pg.920) bility rules pg 920) s).(.(a) or (aq)) " or Cuss magne Sium --) NO reaction tion Would you place cobalt below or above magnesium in the activity chart? Explain: HONORS: On the back, write molecular, complete ionic, net ionic equations for one single and one double eplacement. Include states of matter (subscripts (s).(, (g) or (a))

Explanation / Answer

1.

a.

3 CoCl2 + 2 K3PO4 --> 6 KCl + Co3(PO4)2

Since potassium is more reactive than cobalt, this will be a double displacement reaction.

b.

Mg + K3PO4 --> No reaction

Since magnesium is less reactive than potassium, there will be no reaction.

c.

Mg + CuCl2 --> MgCl2 + Cu

Since magnesium is more reactive than copper, this will be a single displacement reaction.

d.

Mg + CoCl2 --> MgCl2 + Co

Since magnesium is more reactive than cobalt, this will be a single displacement reaction.

e.

CoCl2 + CuCl2 --> No reaction

Since both cations contain the same anion (Cl), there will be not net reaction.

f.

3 CuCl2 + 2 K3PO4 --> 6 KCl + Cu3(PO4)2

Since potassium is more reactive than copper, this will be a double displacement reaction.

2.

Based on the above observations, magnesium is found to be more reactive than cobalt.

Therefore, in the activity series cobalt would be placed below magnesium.

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