It's important to pay close attention to the review packets, for they are very similar to the style of questions on the test. Organization is key in her class too, for homework/classwork is checked daily at her desk and at the beginning of the period. Lab essays are the most harshly graded in chemistry, so prioritize that over everything else. It is crucial that you elaborate your point, add lots of evidence, and reference non-class sources, (like articles, chemists, etc. ).