The precipitate formed in the reaction has been AgCl. Hence, option B is correct.
The precipitate has been the solid insoluble substance that has been formed as the product in the double displacement reaction.
The precipitate settles down in the aqueous reaction mixture and are resulted from the double displacement reaction.
<h3>Which one is the precipitate?</h3>
The reaction of silver nitrate and KCl has been:

The reactants in the reaction are in the aqueous form. Thus, silver nitrate and KCl are aqueous.
The potassium nitrate has been an aqueous solution, while the silver chloride has been the solid product that precipitates out.

Thus, the precipitate formed in the reaction has been AgCl. Hence, option B is correct.
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Answer: 
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
The solutions in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas. Liquids are represented by (l) and gases are represented by (g).
The balanced chemical reaction is:

Answer: 67.2 liters
Explanation: lucky guess and I got it right on a test.
The rate at which a radioactive isotope decays is measured in half-life. The term half-life is defined as the time it takes for one-half of the atoms of a radioactive material to disintegrate. Half-lives for various radioisotopes can range from a few microseconds to billions of years.
Answer:
convection
Explanation:
convection is the movement of a fluid (in this case air) as it rises and lowers in temperature