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paperdoll
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Homework Statement
I am having trouble trying to find out if things react with each other or not. I don't really know how to read the reactivity series well
Homework Equations
Question 1: a student was given a beaker of an unknown ionic solution to identify. she conducted the following tests:
1. add br2 (aq): mixture turns red-brown colour
2. add Al(s): no observed change to solution or metal
the unknown ionic solution could be:
NaI (aq), AgCl, ZnI2 or CuBr2
Question 2:
when chlorine water is added to a sample of colourless ionic solution, the solution changed to a straw brown colour. The unknown solution is most likely to be:
KI(aq) or KBr (aq) or Br2 (aq) or F2(aq)
The Attempt at a Solution
For question 1,I know that aluminium usually likes to give away electrons so the answer is likely to be NaI? because Na is a stronger reducing agent than Al I think.
For question 2
I can eliminate Br2 and F2 since they are not ionic but I am stumped on the other two possible answers.