A 15-G Sample of Lithium Is Reacted with 15 G $\to$

question 4

Multiple Choice

A 15-g sample of lithium is reacted with 15 g of fluorine to form lithium fluoride: 2Li + F₂ $\to$ 2LiF.After the reaction is complete,what will be present?

• A)2.16 moles lithium fluoride only
• B)0.789 moles lithium fluoride only
• C)2.16 moles lithium fluoride and 0.395 moles fluorine
• D)0.789 moles lithium fluoride and 1.37 moles lithium
• E)none of these

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Definitions:

Neurocognitive Disorders

A category of mental health disorders that primarily affect cognitive abilities, including learning, memory, perception, and problem solving.

Learning Disabilities

Neurologically-based processing problems that can interfere with learning basic skills such as reading, writing, or math, and can also affect higher-level skills including organization, time planning, and abstract reasoning.

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A range of neurodevelopmental disorders characterized by deficits in social interaction and communication, and by restricted, repetitive patterns of behavior, interests, or activities.

Overregularization

Overregularization is a phenomenon in language development where children apply basic grammatical rules too widely, leading to errors such as "goed" for "went" or "foots" for "feet".