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when a substance is boiled, what happens to the mass?

the mass increases as it changes from a liquid to a gas.
the mass stays constant as it changes from a liquid to a gas.
there is no mass once the substance becomes a gas.
the mass decreases as it changes from a liquid to a gas.

Summarize possible ways in which phases of matter could combine to form a solution.

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?