Solid Aluminum and Gaseous Oxygen React in a Combination Reaction

question 82

Multiple Choice

Solid aluminum and gaseous oxygen react in a combination reaction to produce aluminum oxide: 4Al (s) + 3O₂ (g) → 2Al₂O₃ (s)
In a particular experiment,the reaction of 2.5 g of Al with 2.5 g of O₂ produced 3.5 g of Al₂O₃.The % yield of the reaction is ________.

• A)74
• B)37
• C)47
• D)66
• E)29

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Definitions:

Kohlberg

Refers to Lawrence Kohlberg, a psychologist known for his theory of moral development.

Investigative Commitment

refers to a deep and systematic engagement in exploring or examining a subject or phenomenon to gain insights or find answers.

Foreclosure Stage

A term from Erikson's theory of psychosocial development, indicating a period where an individual prematurely commits to an identity without adequately exploring alternatives.

Crisis

A critical or tumultuous situation that requires immediate attention and action to manage and mitigate its effects.