Which is an example of a precipitation reaction?

a.
solid c6h12o6 combines with o2 gas to produce co2 gas and h2o gas.

b.
a solution of hcl mixes with a solution of naoh to produce a solution of nacl.

c.
a solution of agno3 mixes with a solution of nacl to produce solid agcl and a solution of nano3.

d.
solid fe combines with o2 gas to produce solid fe2o3.

Answer;

C. A solution of AgNO3 mixes with a solution of NaCl to produce solid AgCl and a solution of NaNO3.

Explanation;

-Precipitation reactions occur when cations and anions in aqueous solution combine to form an insoluble ionic solid called a precipitate. Whether or not such a reaction occurs can be determined by using the solubility rules for common ionic solids.

-Precipitates are insoluble ionic solid products of a reaction, formed when certain cations and anions combine in an aqueous solution.

-A common example is that of the mixing of two clear solutions: silver nitrate (AgNO3) and sodium chloride (NaCl): The reaction is;

                          AgNO3 + NaCl = AgCl + NaNO3  

- The precipitate forms because the solid (AgCl) is insoluble in water. That is true for all precipitates - the solids are insoluble in aqueous solutions.

measure their densities same density, same sub

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.