Suppose Two Chemical Reactions Are Linked Together in a Way

question 71

Multiple Choice

Suppose two chemical reactions are linked together in a way that the O₂ produced in the first reaction goes on to react completely with Mg to form MgO in the second reaction. Reaction one:
2 KClO₃ → 3 O₂ + 2 KCl
Reaction two: 2 Mg + O₂ → 2 MgO
If you start with 4 moles of KClO₃,how many moles of MgO could eventually form?

• A)2 moles
• B)4 moles
• C)6 moles
• D)12 moles
• E)none of the above

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