Acid Rain Is Less of a Threat to Lakes and Streams

question 48

Multiple Choice

Acid rain is less of a threat to lakes and streams in areas where the bedrock is limestone (CaCO₃) . Which of the following represents a balanced equation for the neutralization of acid by limestone

• A)CaCO₃ + 2OH^- \(\rarr\) Ca(OH)₂ + CO₂
• B)CaCO₃ + 2H₃O⁺ \(\rarr\) Ca²⁺ + CO₂ + 3H₂O
• C)CaCO₃ + H₂O \(\rarr\) Ca + H₂CO₃
• D)CaCO₃ + OH^- \(\rarr\) Ca²⁺ + CO₂ + H₂O
• E)CaCO₃ + 2H₃O⁺ \(\rarr\)Ca²⁺ + CO₂ + 2H₂O

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Definitions:

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A device that uses hydraulic pressure to assist in the application of the vehicle's brakes, reducing the effort required by the driver.

Hydraulic Assist

An external power brake assist system that uses hydraulics, typically from the power steering system to a hydraulic power brake booster.

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A device in a vehicle that measures the sideways acceleration to help with stability control and other functions.

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A term used to describe the rate at which one surface slides over another, commonly referenced in automotive and mechanical engineering contexts.