HCl would be suitabl as a source for H^+.
KI would work as a cation for I^-.
Zn is oxidized because it goes from an oxidation state of zero to one of +2. That is a loss of electrons (2 per atom of Zn) and oxidation is defined as the loss of electrons.
2I^- ==> I2 + 2e
Notice this is a loss of electrons, too, and that is why iodide ion is oxidized.
Zn(s)+2H+(aq)->Zn2+(aq)+H2(g)
Br2(aq)+2I-(aq)->2Br-(aq)+I2(aq)
Name one compound containing H+ ions and another containing I- ions, which would be suitable for these reactions.
Ezplain why zinc is said to be oxidised in its reaction.
Complete the half equation to show the oxidising action of bromine.
_I- ->I2+____
1 answer
1 answer