Which One of the Following Statements Is Correct

question 36

Multiple Choice

Which one of the following statements is correct?

• A) A pure substance may be separated by filtration or distillation into two or more components.
• B) A heterogeneous mixture is also known as a solution.
• C) A heterogeneous mixture is composed of two or more substances in the same phase.
• D) The composition is uniform throughout a homogeneous mixture.
• E) The combination of a liquid and a solid always results in a heterogeneous mixture.

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Definitions:

Lever

A simple machine consisting of a rigid bar that pivots on a fixed point, used to transfer force and change the direction of force.

Variable Interval

Variable interval refers to a reinforcement schedule in which rewards are given after unpredictable time intervals, used in behavioral conditioning.

Reinforcement

In psychology, a process by which a stimulus increases the probability of a response through either positive or negative reinforcement.

Response

A reaction to a specific stimulus or set of stimuli, which can be observable behavior or internal processes.