Consider the Reaction: When a 21 $\times$ 10² KJ
D)2 $\times$

question 71

Multiple Choice

Consider the reaction: When a 21.1-g sample of ethyl alcohol (molar mass = 46.07 g/mol) is burned,how much energy is released as heat?

• A)0.458 kJ
• B)0.627 kJ
• C)6.27 \(\times\) 10² kJ
• D)2.89 \(\times\) 10⁴ kJ
• E)2.18 kJ

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Definitions:

Heuristics

Mental shortcuts or rules of thumb that simplify decision-making processes, often leading to quick but sometimes inaccurate conclusions.

Propositions

Statements or assertions that express a judgment or opinion.

Predicate

The part of a sentence or clause containing a verb that states something about the subject.

Spreading Activation Model

A cognitive theory suggesting ideas in the brain are connected in a network, and thinking about one concept can trigger related concepts.