Question
Kevin's Experiment
Kevin's Experiment
Kevin sets up a simple science experiment. He fills a test tube with sodium hydroxide solution. Then, he ties a string around the test tube and pulls it tight under the stopper of a flask containing a copper sulfate solution. When Kevin releases the string, the test tube falls into the copper sulfate solution and the two solutions combine. A diagram of the setup is shown.

Multiple Choice Question
Which statement BEST describes Kevin's science experiment?
A.
The experiment shows an example of a physical change because the products have the same properties as the reactants.
B.
The experiment shows an example of a chemical change because the products have different properties than the reactants.
C.
The experiment shows an example of a chemical change because the products have the same properties as the reactants.
D.
The experiment shows an example of a physical change because the products have different properties than the reactants.
Kevin's Experiment
Kevin sets up a simple science experiment. He fills a test tube with sodium hydroxide solution. Then, he ties a string around the test tube and pulls it tight under the stopper of a flask containing a copper sulfate solution. When Kevin releases the string, the test tube falls into the copper sulfate solution and the two solutions combine. A diagram of the setup is shown.

Multiple Choice Question
Which statement BEST describes Kevin's science experiment?
A.
The experiment shows an example of a physical change because the products have the same properties as the reactants.
B.
The experiment shows an example of a chemical change because the products have different properties than the reactants.
C.
The experiment shows an example of a chemical change because the products have the same properties as the reactants.
D.
The experiment shows an example of a physical change because the products have different properties than the reactants.
Answers
GPT-4o mini
The best answer to describe Kevin's science experiment is:
**B. The experiment shows an example of a chemical change because the products have different properties than the reactants.**
This is because when sodium hydroxide (a base) combines with copper sulfate (an acid) in solution, a chemical reaction occurs, resulting in the formation of new products with different properties (such as a precipitate or a complex solution).
**B. The experiment shows an example of a chemical change because the products have different properties than the reactants.**
This is because when sodium hydroxide (a base) combines with copper sulfate (an acid) in solution, a chemical reaction occurs, resulting in the formation of new products with different properties (such as a precipitate or a complex solution).