Which of the following is at the highest energy during an endothermic chemical reaction?
Correct Answer: D.activated complex
During a chemical reaction, enough energy must be absorbed for the reaction to take place. This is termed the activation energy. At the height of the activation energy is the activated complex, which is an intermediate between the reactant and the product. This forms when the reactants have gained enough energy and have collided with the right orientation to start the reaction. It is this activated complex that has the highest energy of the answer options given.
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The Dental Admission Test (DAT) is a test administered by the American Dental Association (ADA). The test is four hours and 30 minutes long and contains four sections. The test is designed to assess your knowledge in: biology, chemistry, organic chemistry, perceptual ability, reading comprehension, and basic math.
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The DAT is the final challenge before you apply to dental school and should not be taken lightly. Depending on the strength of your scientific knowledge, your study schedule should be between 4 to 10 weeks. Here's a link to my definitive DAT study guide and schedule which will help you prepare.
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You should plan on taking the DAT late spring or during the summer of your application year. For example, the class of 2020 should take the DAT in the spring or summer of 2015. You can begin the registration process for the DAT at the ADA's website. Be sure to apply for a test date early as the registration process may take some time.