Question

The pH indicator bromothymol blue is an alkaline solution and yellow is an acidic solution. A slight increase in acidity. Such as when co2 gas is added, causes a solution with the indicator to change from blue to yellow. A solution with the indicator would be most likely to turn from yellow to blue when which combination of factors exists?

Answer 1

Water plants in the solution are placed under a bright lamp. Thus, option "B" is correct.

Explain your answer briefly?

As we know adding carbon dioxide in as solution result in the change of its acidity this is result in the indicator to change from blue to yellow. In the question, it is asked that what factors from the given option will cause yellow indictor to blue which means what factors cause the solution to be alkaline from acidic.

Placing the green water plants in the solution under a bright lamp will cause the is utilizing and remove present carbon dioxide in the solution and leads the to blue color from the yellow color of the solution.

Thus, this could be the answer.

The question is incomplete, however, the missing part is given as below:

A. Yeast cells and sugar are placed in the solution. B. Water plants in the solution are placed under a bright lamp. C. Algae are placed in the solution and left in a dark room. D. A person blows air into the solution through a straw.

To learn more about  pH indicator click here:

brainly.com/question/16236741

#SPJ