marco wants to investigate the chemical properties of sodium bicarbonate, or baking soda. he plans to carry…

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

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

Answer

Brief Explanations:

A physical property can be observed or measured without changing the substance's chemical identity. A chemical property is observed when a substance undergoes a chemical change. Test 1 (dissolving in water) and Test 3 (melting - point determination) are physical property tests as they don't change the chemical nature of sodium bicarbonate. Test 2 (reacting with vinegar) is a chemical property test because a chemical reaction occurs when sodium bicarbonate reacts with acetic acid in vinegar, producing carbon dioxide gas (the fizzing).

Answer:

Only Test 2 will indicate a chemical property of sodium bicarbonate. Tests 1 and 3 will show a physical property of the substance.