Answer:
4
Explanation:
water starts to boil into water vapor at 100'C. at this point, temperature becomes costant at 100'C as heat energy is used up by the particles to overcome the intermolecular forces between the molecules.
once the forces holding the particles together have been overcome, the temperature will start to rise again showing that all the liquid water has been converted into water vapor
According to the glossary in the back of 'Chemistry: A Central Science - Twelfth Edition', a precipitate is "An insoluble substance that forms in, and separates from, a solution."
Mercury is a homogenous mixture of two or more pure substances
Physical: color red or green behavioral:grows