(a) Define the term oxidation state. (b) Calculate the oxidation states of chromium and manganese in the following ions. (i) Chromium in Cr2O72- (ii) Manganese in...

      

(a) Define the term oxidation state.
(b) Calculate the oxidation states of chromium and manganese in the following ions.
(i) Chromium in Cr2O72-
(ii) Manganese in MnO4-

  

Answers


sharon
(a) Oxidation sate is the charge carried by an ion of an element or a radical.
(b)i) 2x + 7(-2) = -2
2x-14=-2
2x=-2+14
2x=12
x=+6
ii) x + 4(-2)=-1
x-8=-1
x=-1+8
x=+7
sharon kalunda answered the question on March 27, 2019 at 06:41


Next: Prepare a trial balance from the following balances extracted from the books of San enterprises on 30th April, 1995.
Previous: State how a hydrometer may be used to test whether a car battery is fully charged.

View More Chemistry Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions