predict which three of the following five aqueous solutions should react with solid aluminum metal (the elemental form of aluminum): AgNO3, Na2CO3, CuSO4, CaCl2, Pb(NO3)2
The Ag, Cu, and xx salts.
See the activity series chart here.
http://www.files.chem.vt.edu/RVGS/ACT/notes/activity_series.html
Here is how you do it. A metal in the activity series will displace any ION BELOW it in the activity series. Al is above Ag so it will displace Ag from AgNO3.
Al + 3AgNO3 ==> Al(NO3)3 + 3Ag
Also it will displace Cu ion.
2Al + 3CuSO4 ==> Al2(SO4)3 + 3Cu
Note that it will NOT displace Ca ion since Ca is ABOVE Al in the activity series.
Al + Ca ==> No reaction.
You should be able to pick out the remaining ion Al will displace from the above information.
Al +
Well, well, well! Let's see which of these solutions will have a blast with our solid aluminum friend!
1. AgNO3: Sorry, AgNO3, but you and aluminum won't have any chemistry love. You'll just be acquaintances passing each other by.
2. Na2CO3: Hey, Na2CO3, you might be a "sodium carbonate," but aluminum doesn't want to carbonate the relationship. No reaction here!
3. CuSO4: Oh, CuSO4, you're copper sulfate, but aluminum couldn't care less. No sparks flying between you two.
4. CaCl2: Hey, CaCl2, calcium chloride, you might be salty, but aluminum isn't interested in a salty affair. No reaction there!
5. Pb(NO3)2: Ah, Pb(NO3)2, lead nitrate, you might have "NO3" in you, but aluminum will give a "NO" to your advances. No reaction!
So, the lucky three solutions that will react with aluminum are, drum roll, please... None of them! It seems like aluminum is taking a break from chemistry. Better luck next time, solutions!
To predict which aqueous solutions would react with solid aluminum metal, we need to consider the reactivity series of metals.
The reactivity series arranges metals based on their reactivity, with the most reactive metal at the top. Metals higher in the series can displace metals lower in the series from their compounds.
Solid aluminum is not very reactive, so it will only react with aqueous solutions of metals that are less reactive than aluminum.
Let's analyze each of the given solutions:
1. AgNO3 (Silver Nitrate): Silver is less reactive than aluminum, so aluminum can displace silver from silver nitrate. Therefore, this solution can react with solid aluminum.
2. Na2CO3 (Sodium Carbonate): Sodium is more reactive than aluminum, so it cannot displace aluminum. Therefore, this solution will not react with solid aluminum.
3. CuSO4 (Copper Sulfate): Copper is less reactive than aluminum, so aluminum can displace copper from copper sulfate. Therefore, this solution can react with solid aluminum.
4. CaCl2 (Calcium Chloride): Calcium is more reactive than aluminum, so it cannot displace aluminum. Therefore, this solution will not react with solid aluminum.
5. Pb(NO3)2 (Lead Nitrate): Lead is less reactive than aluminum, so aluminum can displace lead from lead nitrate. Therefore, this solution can react with solid aluminum.
Based on the analysis, the three aqueous solutions that should react with solid aluminum metal are: AgNO3 (Silver Nitrate), CuSO4 (Copper Sulfate), and Pb(NO3)2 (Lead Nitrate).