Which of the following statements best describes what the law of conservation of mass means?
~When a state change happens, a substance becomes denser and its mass increases.
~When a solid melts into a liquid, its mass increases through the phase change.
~When a liquid evaporates into a gas, mass is lost through the phase change.
~When a substance changes from one state to another state, its mass does not change.
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Which of the following statements best describes what the law of conservation of mass means?
~When...
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