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CST Chemistry 007 Includes 28 competencies/skills found on the CST Chemistry test and 125 sample-test questions. This guide, aligned specifically to standards prescribed by the New York Department of Education, covers the sub-areas of Foundations of Scientific Inquiry; Matter and Atomic Structure; Energy, Chemical Bonds, and Molecular Structure; Chemical Reactions; Stoichiometry and Solutions; and Interactions of Chemistry and the Environment.