What Is the Standard Enthalpy of Formation of
CaCO₃(s)

question 35

Multiple Choice

What is the standard enthalpy of formation of
CaCO₃(s) + CaO(s) + CO₂(g) ? CaCO₃(s) ; ?H° = -179.4 kJ/mol-rxn
$$\begin{array} { l l } \text { Substance } & \Delta _ { f } H ^ { \circ } ( \mathrm { kJ } / \text { mol-rxn } ) \\\mathrm { CaO } ( s ) & - 634.9 \\\mathrm { CO } _ { 2 } ( g ) & - 393.5\end{array}$$

• A) 62.0 kJ/mol-rxn
• B) -420.8 kJ/mol-rxn
• C) -849.0 kJ/mol-rxn
• D) -1207.8 kJ/mol-rxn
• E) 849.0 kJ/mol-rxn

Define the rule of law and its importance in governance.

Comprehend the concept and significance of civil disobedience.

Identify the roles of different branches within the government.

Recognize checks and balances in the U.S. government system.

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Definitions:

Sensitive Period

A time when a particular developmental growth is most likely to occur, although it may still happen later.

Developmental Task

A skill or goal that is expected to be achieved at a certain stage in a person's development, contributing to their overall growth and competence.

Dynamic System

A system characterized by constant change, activity, or progress, often used to describe natural or social systems that evolve over time.

Deductive Reasoning

A judgment-making process in which the outcome depends on the compatibility of several premises presumed to be factual.