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What happens to the mass of a beaker of water with a teaspoon of sugar in it measured on a balance pan compared to a teaspoon of sugar and a beaker of water separated on a balance pan? does the mass increase, decrease or stay the same? and why?

  • Chemistry -

    An example:
    1. beaker with mass 50.0 g + sugar with mass 10.0 grams + water with 25.0 = total 85.0 g

    2. beaker 50.0 g
    sugar 10.0 g
    water 25.0 g.
    Total = 85.0 grams.
    Since the sugar only dissolves (a physical change, not a chemical change) and there is no reaction, there is no loss or gain of mass so it matters little if the water and sugar are mixed.

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