Which Description of Ca²⁺ Is Most Accurate

question 20

Multiple Choice

Which description of Ca²⁺ is most accurate?

• A)A positive ion that has lost 2 electrons.
• B)A positive ion that has gained 2 protons.
• C)An isotope with 2 extra neutrons.
• D)An atom that has gained 2 electrons.

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Definitions:

Short-run Profits

The profit earned by a firm during a period where at least one input is fixed, typically analyzed to understand performance without long-term adjustments.

Capital Flow

The movement of money for the purpose of investment, trade, or business production across international borders.

Industry's Short-run

A period in which at least one of a firm's inputs is fixed, limiting the firm's ability to adjust to changes in market demand.

General Equilibrium

A state in which all parts of the economy (supply, demand, prices) are in balance and all markets are at equilibrium.