Astudent is given two clear solutions. one solution contained lead ions, pb2+ and the other solution contains chloride ions, cl-. when the two solutions are mixed, a clear solution with white powder at the bottom results. what has happen to cause this change?

A chemical change has occurred.

Explanation: A chemical change is a change which results when there is a change in the chemical composition of the atoms.

Chemical changes are accompanied by:

a) Change in color

b) Absorption or release of heat

c) formation of precipitates

d) production of gas

The white powder is precipitates of lead chloride which do not dissolve.

the answer is learned

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.