[Watermelon]

Doing a chapter on water at school, precipitation reactions in water etc. And um, yah~

"If you wished to remove the copper ions from a particular solution, what is one simple experimental procedure you could use?"
I'm actually not sure. D: Notice how it asks for a simple procedure?
I don't think they'll accept an answer involving evaporating the solvent then distilling the leftover anhydrous stuff at impractically high temperatures to seperate the copper.

"If the labels on a bottle of aluminium chloride and a bottle of ammonium chloride were obscured, what quick test could you perform to tell which was which?"
Again, I can't think of a 'quick' test, I just think of a similar solution to the last question, which probably won't count as a real answer.

I'm just really crappy at questions that need a bit of thinking. Even if it's just a little bit of thinking. ><

Thanks in advance peoples~ <3

[Borek]

These questions were asked while you were doing a chapter on precipitation, weren't they?

[Arkcon]

You are going to have to review your class notes or textbook pages you've covered to find simple chemical reactions to help you solve these problems.  For the first one, it will depend on what else is in solution that you'll want to keep in solution before you start.

[Watermelon]

For the first one, it will depend on what else is in solution that you'll want to keep in solution before you start.

Yeah, except, that's all that the question tells me ;-;

These questions were asked while you were doing a chapter on precipitation, weren't they?

yes, but ive never come across a question like them :c

[Borek]

Think if you can't use precipitation in some way. Perhaps you can precipitate some copper compound and filtrate it? Perhaps adding some solution to the unknown solution will produce a precipitate that will help you determine presence of a cation?