Question

read this! a well - written research question states the independent and dependent variables for an experiment. for example, a student investigated the effect of the deicer, magnesium chloride, on vegetation on the sides of highways. her research question was, “what is the effect of magnesium chloride solution concentration on the growth of rye grass?” 12. write a research question, using the format suggested in the read this! box, for the experiments in models 2 and 3. alka - seltzer® and vinegar — boiling points of alcohols —

Explanation:

For "Alka - Seltzer® and Vinegar" experiment:

We need to follow the format of stating the independent and dependent variables in the research question. The independent variable here can be the amount or concentration of Alka - Seltzer® (or Vinegar, depending on the experimental design), and the dependent variable can be the rate of gas production (like the volume of CO₂ produced) or the time taken for a certain reaction to complete. So a suitable research question would be "What is the effect of the amount of Alka - Seltzer® on the rate of gas production when it reacts with vinegar?"

The independent variable can be the type of alcohol (e.g., methanol, ethanol, propanol) or the molecular weight of the alcohol, and the dependent variable is the boiling point. So the research question can be framed as "What is the effect of the type of alcohol on its boiling point?"

Answer:

What is the effect of the amount of Alka - Seltzer® on the rate of gas production when it reacts with vinegar?

For "Boiling Points of Alcohols" experiment: