The CDT tests knowledge, application and evaluation skills from prior study of chemistry, usually a year course in high school. This makes any test preparation difficult. Yet the test is not meant to be difficult. It is designed to identify students at risk, not differentiate between students who will get C or better. This preview is offered to those who might still be concerned. Test items can be categorized as: structure, properties, chemical quantities, phases, solutions, and mathematics.

• Structure includes atomic and molecular structures.
• Properties includes periodic properties of atoms and elements, including chemical reactions.
• Chemical quantities include molar relations derived from formulas and balanced chemical equations.
• Phases include microscopic behavior and interpretation of the kinetic molecular theory and intermolecular attractions.
• Quantitative concentration problems include the amount (molarity) and mass (ppm) units. Solution items with qualitative and quantitative aspects include: solubility, rate of reaction, and equilibrium expressions.
• Practical mathematics items include proportionality with one variable and more than one, significant figures, identification of a substance by reference to a table of properties, graphing, evaluation of complex mathematical expressions.
   

What your score means.

Testing dates.