Consider the following reaction at 298K. Zn2+ (aq) + Co (s) Zn (s) + Co2+ (aq) Which of the following statements are correct? Choose all that apply. K > 1 delta Go < 0 Eocell < 0 The reaction is reactant-favored. n = 4 mol electrons

The reaction is reactant-favored

Explanation:

If we take a look at the reaction equation, Zn2+ (aq) + Co (s) Zn (s) + Co2+ (aq) and consider the reduction potential of the species involved

Zn^2+(aq)/Zn(s)= -0.76

Co^2+(aq)/Co(s)= -0.28

It can easily be seen that the reduction potential of zinc is more negative than that of cobalt. Hence the electrochemical reaction is not spontaneous as written but will greatly favour the reverse reaction.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.