Bubbles Will Form on Wires Attached to a 9-Volt Battery

question 11

Multiple Choice

Bubbles will form on wires attached to a 9-volt battery placed in water. Which statements correctly describe what is happening?
I. The wire attached to the () battery electrode becomes the cathode, and water is being reduced there to produce hydrogen gas.
II. The wire attached to the () battery electrode becomes the anode, and water is being oxidized there to produce oxygen gas.
III. The wire attached to the () battery electrode becomes the cathode, and water is being oxidized there to produce oxygen gas.
IV. The wire attached to the () battery electrode becomes the anode, and water is being reduced there to produce hydrogen gas.

• A)I and II
• B)III and IV
• C)I and III
• D)II and IV
• E)I and IV

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Definitions:

Monopolistically Competitive

A market structure characterized by many sellers offering differentiated products, leading to competition based on product quality, brand, and price.

Zero Profits

A situation where a firm's total revenues exactly equal its total costs, typically in the long run in perfectly competitive markets.

Monopolistic Competition

A market structure characterized by many firms selling products that are similar but not identical, with few barriers to entry.

Price Exceeds Marginal Cost

A situation where the price of a good is higher than the marginal cost of producing it, often indicating imperfect competition.