Chemistry: The Study of Matter and Its Changes, 7e will provide the necessary practice, support and individualized instruction that ensures success in the General Chemistry course. This text provides the forum for problem solving and concept mastery of chemical phenomena that leads to proficiency and success in the General Chemistry course. This text follows the successful three-step approach described as "ANALYSIS," "SOLUTION" and "IS THE ANSWER REASONABLE?" This encourages the reader to think about the problem before attempting to solve it, then working through the solution, and finally asking the important question "Does the answer make sense?" There are problem sets called "Bringing It Together" that contain problems which require readers to bring together concepts from two or more of the preceding chapters. This reinforces learned concepts and builds concept mastery.