Chemistry, 03.08.2019 23:00 alexandergoetz4857

Which of these liquids are solutions? check all that apply. a. water b. salt water c. soda d. orange juice e. coffee

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Answer from: daniellekennedy05

B. Salt water

C. Soda

D. Orange Juice

E. coffee

Explanation:

A solution is a type of the homogeneous mixture which is composed of two or more substances. The specie which is dissolved into the another substance is known as solute and in which it is dissolved is known as a solvent.

A compound is the substance which is formed when two or more elements are bonded together chemically. Thus, Water is a compound.

Soda, salt water, orange juice and coffee are homogeneous mixtures. Soda consists of gas which is dissolved in it. Orange juice is also a solution as it contain pulp or other biomolecules dissolved in it. Coffee is made up of milk which have solutes dissolved in it. Salt water is also a solution.

Hence, the answer is:-

B. Salt water

C. Soda

D. Orange Juice

E. coffee

Answer from: Quest

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( $n_2$ ) .

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.

Answer from: Quest

i dont know

explanation:

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