Chem question...qualitative analysis of group III cations?

Question

Write balanced net ionic equations describing each of the following raections:

a) The dissolution of Ni(Oh)2 in Nitric acid.

b) The oxidation of Cr^3+ to Cr^6+ by ClO- in alkaline solution(Clo- is converted to Cl-)

c) The cofirming test for Fe^3+

Thanks!

Answer 1

a) The dissolution of Ni(Oh)2 in Nitric acid.

Ni(OH)2 (s) & 2 HNO3(aq) --> Ni(NO3)2 (aq) & 2 H2O

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b) The oxidation of Cr^3+ to Cr^6+ by ClO- in alkaline solution(Clo- is converted to Cl-)

2 Cr+3  & 3ClO-  &3 H2O --> 2 Cr+6 & 3Cl- & 6 OH-

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c) The confirming test for Fe^3+

Fe3+ (aq) + 6SCN- (aq) --> [Fe(SCN)6]3- (aq)