Which two statements below are true? You can only pick two. A mixture is made of substances that can be easily physically separated from each other. The elements that make up a compound are chemicaly bonded to each other and therefore are NOT easily separated from each other. Both compounds and mixtures are easily separated from each other because they are elements or substances that are only in physical contact with each other; they are not chemically connected. In a compound and a mixture, changing the ratio of atoms or substances will chemically change the compound and mixture.

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.

dynamic equilibrium is the answer.

idk what the question is about

5.6⋅10−^19  j

do you need the explaination?