Consider the following unbalanced redox reaction:
cr2o72- (aq) + no2 (aq) – cr3+ (aq) + no3(aq)
what is the oxidizing agent in the reaction?

the oxidizing agent is Cr2O7–²

Explanation:

oxidizing agent is always reduced

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.