A Catalyst

question 73

Multiple Choice

A catalyst

• A) increases the rate of a chemical reaction
• B) increases the amount of product obtained in a chemical reaction
• C) decreases the amount of product obtained in a chemical reaction
• D) none of the choices

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Definitions:

Obsessions

Persistent, unwanted thoughts, images, or impulses that cause significant distress or anxiety.

Delusions

Strongly held false beliefs or judgments, which are resistant to reason or confrontation with actual fact, often occurring as a symptom of psychiatric disorders.

Hallucinations

Perceptions in a conscious and awake state in the absence of external stimuli which have qualities of real perception.

Compulsions

Actions or thoughts repeatedly carried out by a person compelled by an obsession or by strict rules.