A Student Measures 10

question 44

Multiple Choice

A student measures 10.5 g of mercury(II) oxide into an open test tube and heats the tube.The heat causes the mercury(II) oxide to decompose into mercury and oxygen.After reaction,the student finds the mass of the contents of the tube to be 9.7 g.Which one of the following describes these observations?

• A)The decomposition of mercury(II)oxide does not obey the Law of Conservation of Mass.
• B)0)8 grams of oxygen gas are lost from the tube.
• C)There are errors associated with the student's measurements.
• D)Heating destroys some mass.

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Definitions:

Neo-psychoanalysts

Neo-psychoanalysts are theorists who extended Freudian psychoanalysis to include social and cultural factors in personality and psychological development.

Behaviorism

A theory of learning based on the idea that all behaviors are acquired through conditioning, emphasizing observable behaviors over internal states.

Interpretations

The action of explaining the meaning of something or the way a person understands a concept or event.

Personality

A combination of emotional, attitudinal, and behavioral response patterns of an individual.