Which of the following solutions will have the highest electrical conductivity?

a) 0.040 m (nh4)2co3b) 0.10 m libr
c) 0.07 m nai
d) 0.045 m al2(so4)3e) 0.15 m lif

d.- 0.045 M Al2(SO4)3

Explanation:

From the ionic salts that are presented, when they dissolved in water, the ions are going to be separated. From the list above, the aluminum is the metal that posses the highest electrical conductivity.

The second ion that can conduct electrical charge is the sodium. This ability is due to the atomic structure, the electrons are easy to be be apart from the aluminum that other metals.

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form() .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

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