What Is the Reaction for the Standard Enthalpy of Formation

question 4

Multiple Choice

What is the reaction for the standard enthalpy of formation for CdSO₄(s) ? (Cd(s) is the stable form of cadmium.)

• A) Cd(NO₃)₂(aq) + H₂SO₄(aq) → 2 HNO₃(aq) + CdSO₄(s)
• B) Cd²⁺ (aq) + 2 SO₄^2- → CdSO₄(s)
• C) Cd(s) + 1/8 S₈ (s) + 2O₂(g) → CdSO₄(s)
• D) CdO(s) + SO₃(l) → CdSO₄(s)
• E) Cd(s) + 1/8 S₈ (s) + 4O(g) → CdSO₄(s)

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Definitions:

Priming

A process in memory where exposure to one stimulus influences the response to another stimulus, often without conscious guidance or intention.

Automatic Processing

Cognitive activities that require little effort, awareness, or conscious control, such as habits and learned skills.

Primacy Effect

The tendency to remember information at the beginning of a list better than information in the middle or end, often due to the initial items receiving more cognitive focus.

Memory Retention

The ability to retain information over time through the process of encoding, storage, and retrieval of memories.