Chemistry, 28.08.2019 16:30 mileskamron979
Marco wants to investigate the chemical properties of sodium bicarbonate, or baking soda. he plans to carry out the tests below.
test 1: mix a teaspoon of sodium bicarbonate into a cup of warm water to see if it dissolves.
test 2: mix a teaspoon of sodium bicarbonate into a cup of vinegar to see if it fizzes.
test 3: heat a teaspoon of sodium bicarbonate in the oven to see if its melting point is less than 400 degrees fahrenheit.
which statement provides the best assessment of his tests?
only test 3 will indicate a chemical property of sodium bicarbonate. tests 1 and 2 will show a physical property of the substance.
only tests 1 and 2 will indicate chemical properties of sodium bicarbonate. test 3 will show a physical property of the substance.
only test 2 will indicate a chemical property of sodium bicarbonate. tests 1 and 3 will show a physical property of the substance.
only tests 1 and 3 will indicate chemical properties of sodium bicarbonate. test 2 will show a physical property of the substance.
Answers: 2
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