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

question 84

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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