[Shabbar]

Hello,
I am currently preparing for my exams and I had a few questions:
1. Let's say we have a reaction between Cu and dilute H₂SO₄, we would get CuSO₄ + H₂. Simple. But, if the acid is concentrated then we get CuSO₄, H₂O and SO₂.

Remembering this one reaction is easy but it gets a bit tough when they start to pile up. I was wondering if there was a method to predict the products of any reaction.

2. We have the reactivity series. It says that F is more reactive than Cl. So the reaction NaCl + F gives NaF + Cl₂. But NaF + Cl₂ doesn't give a reaction.

My question is that do we consider the reactivity series when dealing with a reaction between compounds like NaCl + FeSO₄?

[chenbeier]

The first statement is half wrong. Copper and diluted sulfuric acid has no reaction. Copper has a positiv redoxpotential its above hydrogen. Your statement would beright with yinc YN for example.

Sodium chloride and ironsulfate has no reaction. In solution you can find all ions.