If you were to conduct an experiment to answer the question, "Does the volume of a caffeinated drink affect your reaction time?”, what would be the controlled variable? A type of drink
B reaction times
C number of bubbles
D volume of caffeinated drink

A Type of Drink

Explanation:

A controlled variable remains constant throughout the experiment.

In such experiment, you'd test the volume of one single caffeinated drink. You'd have to use the same type of drink every trial.

sure what is it? ^w^

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.