Chalk Is Primarily Composed of Calcium Carbonate

question 40

Multiple Choice

Chalk is primarily composed of calcium carbonate. The formula of calcium carbonate is

• A) CaCO₃.
• B) Ca₂CO₃.
• C) Ca(CO₃)₂.
• D) Ca₃(CO₃)₂.

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Definitions:

Hardy Personality

A personality trait characterized by resilience and the ability to remain calm and clear-headed under pressure or during difficult situations.

Type A Personality

A behavioral pattern characterized by high levels of competitiveness, impatience, aggression, and a constant sense of urgency.

Introvert Personality

Refers to individuals who tend to be more inward-focused, often preferring solitude or small group interactions and finding energy in reflective activities.

Cognitive Appraisal

The process of evaluating and interpreting an event or situation that leads to an emotional response, influencing how one reacts to the situation.