Is mass conserved when 200 g of water undergoes a physical change? Use complete sentences to support your answer by explaining how this can be demonstrated.
According to the law of conservation of mass; Mass can neither be created nor be destroyed in a chemical reaction or physical reaction. Physical change means that water changes its phase from liquid to gas in the form of steam or liquid to solid in the form ice. In both cases if the mass of the water is calculated using appropriate formulas for the respective phase then it can be demonstrated that the total mass of water remains same in all three phases.
