Which of These Reactions Represents the Removal of Silica from Iron

question 41

Multiple Choice

Which of these reactions represents the removal of silica from iron ore in a blast furnace?

• A) SiO₂(s) → SiO₂(g)
• B) SiO₂(s) + CaO(s) → CaSiO₃(l)
• C) SiO₂(s) + 4HF(g) → SiF₄(g) + 2H₂O(g)
• D) SiO₂(s) + C(s) → Si(l) + CO₂(g)
• E) SiO₂(s) + CO(g) → SiCO₃(l)

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Definitions:

Dynamic Systems Theory

A theory that addresses how new, complex systems of behavior develop from the interaction of less complex parts.

Complex Systems

Systems composed of many components which may interact with each other in multiple ways, leading to emergent behavior that cannot be predicted from the behavior of the individual components.

Interaction

The reciprocal action or influence between entities, objects, or individuals, highlighting how they affect each other.

Information-Processing Theorists

Scholars who study how human beings process information, including the ways in which they perceive, analyze, manipulate, store, and retrieve information.