The Production of Lead Is a Two Step Process

question 90

Multiple Choice

The production of lead is a two step process:
2 PbS(s) + 3 O₂(g) 2 PbO(s) + 2 SO₂(g)
2 PbO(s) + C(s) 2 Pb(l) + CO₂(g)
How much ore that is 5.2% PbS is necessary to produce 12.0 kg of Pb?

• A) 0.721 kg
• B) 200 kg
• C) 2.67 kg
• D) 133 kg
• E) 267 kg

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Definitions:

Behavioral Theories

A group of theories suggesting that behavior is learned through interactions with the environment, rather than being innate or inherited.

Depression

A mental disorder distinguished by a. long-lasting despondent mood or a disconnection from joy in usual engagements, critically impairing routine life.

Positive Reinforcers

A stimulus which, when presented after a behavior, increases the probability of that behavior being repeated.

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