Using the activity series, write a balanced chemical equation for the following reactions:

1. iron metal is added to a solution of copper (II) nitrate

2. zinc metal is added to a solution of magnesium sulfate

3. hydrobromic acid is added to tin metal

4. hydrogen gas is bubbled through an aqueous solution of nickel (II) chloride

**Identify all of the phases in your answer. If no reaction occurs, simply write, "no reaction."

Can someone please help me with these? I don't even know where to begin.

1-Fe(s)+Cu(NO3)2(aq)→Fe(NO3)2(aq)+Cu(s)

2- no reaction
3-2HBr(aq)+Sn(s)→SnBr2(aq)+H2(g)
4- no reaction
5-2Al(s)+3CoSO4(aq)→Al2(SO4)3(aq)+3Co(s)

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Of course! I can help you with these balanced chemical equations using the activity series.

The activity series is a list of metals in order of their reactivity. It is used to predict whether a reaction between a metal and a metal ion will occur. The metal higher in the activity series will replace the metal lower in the activity series if they are in a compound together.

Now, let's tackle each reaction step by step:

1. Iron metal is added to a solution of copper (II) nitrate:
To determine whether a reaction occurs, we compare the activity of iron to copper in the activity series. Iron is above copper, so a reaction will occur. The balanced chemical equation is:
Fe(s) + Cu(NO3)2(aq) → Fe(NO3)2(aq) + Cu(s)
In this equation, (s) indicates a solid and (aq) indicates an aqueous (dissolved) solution.

2. Zinc metal is added to a solution of magnesium sulfate:
Again, we compare the activity of zinc to magnesium. Zinc is above magnesium, so a reaction will occur. The balanced chemical equation is:
Zn(s) + MgSO4(aq) → ZnSO4(aq) + Mg(s)

3. Hydrobromic acid is added to tin metal:
This time, we are dealing with an acid-metal reaction. Acids can react with some metals to produce hydrogen gas. However, to determine if the reaction will occur and write a balanced equation, we need to consult the activity series for both hydrogen and tin. Tin is above hydrogen in the activity series, so tin will not react with hydrobromic acid. Therefore, the answer is "no reaction."

4. Hydrogen gas is bubbled through an aqueous solution of nickel (II) chloride:
In this case, we need to consider the activity of hydrogen and nickel. Since hydrogen is above nickel in the activity series, a reaction will occur. The balanced chemical equation is:
H2(g) + NiCl2(aq) → 2HCl(aq) + Ni(s)

I hope this explanation helps! Let me know if you have any further questions.

1. I'm not sure

2. "no reaction"

3. 2HBr(aq)+Sn(s) --> SnBr2(aq)+H2(g)

4. "no reaction"

5. "no reaction"

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