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Dr Kulich Is Conducting a Study to See If Scary

question 198

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Dr. Kulich is conducting a study to see if scary ghost stories cause fear in young children. She recruits 50 children to be in her study and she tells half of the children a scary ghost story. The other half are told a happy story about baby farm animals. She measures the heart rate of the children as an indication of fear. In this study, heart rate is:


Definitions:

Free Radical Bromination

A chemical reaction process involving the substitution of hydrogen atoms in organic molecules with bromine atoms, initiated by free radicals.

Free Radical Chlorinations

A reaction involving the substitution of hydrogen by chlorine in a hydrocarbon through the action of free radicals.

Hammond Postulate

A principle in organic chemistry that proposes the structure of a transition state is more similar to the structure of the reactants or products to which it is more similar in energy.

Free Radical Bromination

A chemical reaction process whereby bromine radicals (Br.) selectively react with C-H bonds in hydrocarbons to form brominated products.

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