In the Reaction 2Al + 3F₂→ 2AlF₃, the Aluminum

question 2

Multiple Choice

In the reaction 2Al + 3F₂→ 2AlF₃, the aluminum

• A) is reduced.
• B) gains electrons.
• C) is oxidized.
• D) is the catalyst.

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Definitions:

Independent Variable

A variable that is manipulated to determine its effects on a dependent variable in an experimental setting.

Nominal

A scale of measurement used to label variables without a quantitative value, categorizing data without a natural order or ranking.

Research Hypotheses

Statements made by researchers that predict a relationship between variables, to be tested by scientific research.

Samples and Populations

Concepts in statistics where a sample represents a subset of a larger group (population) from which it is drawn and is used to infer properties about the population.