Many students mistakenly believe that Chem 101A is an introductory course, one that can be taken without having taken any chemistry courses in the past. This is not the case! At a minimum, you should ...Many students mistakenly believe that Chem 101A is an introductory course, one that can be taken without having taken any chemistry courses in the past. This is not the case! At a minimum, you should be familiar with the following information already. “Familiar” means that you should be able to answer questions about these topics with a minimum of review (no more than 10 minutes for any one topic). Do not expect to be able to spend time reviewing these basic concepts during Chem 101A!