What Is Not an Appropriate Method of Isolating the Metals

question 118

Multiple Choice

What is not an appropriate method of isolating the metals shown?

• A)HgS(s)+ O₂(g)+ heat → Hg(g)+ SO₂(g)
• B)ZnO(s)+ C(s)+ heat → Zn(g)+ CO(g)
• C)WO₃(s)+ 3 H₂(g)+ heat → W(s)+ 3 H₂O(g)
• D)Al₂O₃(s)+ 2 Cr(s)+ heat → Cr₂O₃(s)+ 2 Al(l)

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Definitions:

Walter Cannon

Walter Cannon was an American physiologist who coined the term "fight or flight response," describing an animal's response to threats with a general discharge of the sympathetic nervous system.

Spinal Cord

A part of the central nervous system that runs down the vertebral column, transmitting messages between the brain and the body.

Sympathetic Nervous System

A part of the autonomic nervous system responsible for the body's 'fight or flight' response, regulating involuntary physiological functions.

Thalamus

The brain's relay center, directing sensory and motor signals to the cerebral cortex and the regulation of consciousness, sleep, and alertness.