Potassium Chlorate (Used in Fireworks, Flares, and Safety Matches) Forms

question 32

Multiple Choice

Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and potassium chloride when heated. KClO₃(s) → KCl(s) + O₂(g) [unbalanced]
How many grams of oxygen are formed when 26.4 g of potassium chlorate is heated?

• A)223 g
• B)99.1 g
• C)10.3 g
• D)6.86 g
• E)4.60 g

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Definitions:

Retrieval Failure

A cognitive psychology theory explaining how the inability to access stored information in the brain can lead to forgetting.

Proactive Interference

The phenomenon where old memories hinder the recall of newly learned information.

Source Monitoring

The process of determining the origins of our memories, knowledge, or beliefs, distinguishing between different sources.

Reality Monitoring

The process of distinguishing between memories of actual events and imagined events.