In All Chemical Changes

question 43

Multiple Choice

In all chemical changes,

• A) reactants disappear completely.
• B) all of the reactants must cease to exist.
• C) the weight of products and reactants must balance.
• D) products must be in the same physical state as the reactants.

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Definitions:

Auditory

Relating to the sense of hearing or the system within the body that is responsible for processing sound.

Visual

Relating to seeing or to the sight, the sense by which the qualities of objects such as color, shape, and size are perceived.

Hippocampus

A part of the brain that is crucial for learning and memory.

Navigation

The process and ability to determine one's position and plan and follow a route through an environment.