posted by Jessica on .
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. 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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