This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Step 1: Answer 16.1.1 The dependent variable is the quantity that is measured or observed during the experiment. The dependent variable is the volume of CO_2 gas produced*. Step 2: Answer 16.1.2 The independent variable is the quantity that is intentionally changed by the experimenter to observe its effect. The independent variable is the state of division of CaCO_3* (or surface area of CaCO_3). Step 3: Answer 16.2.1 The rate of reaction is represented by the gradient of the curve (volume of CO_2 vs time). During the interval from 20 s to 40 s, the curve is still rising but becoming less steep. Therefore