Elemental Boron Can Be Formed by the Reaction of Boron

question 6

Multiple Choice

Elemental boron can be formed by the reaction of boron trichloride with hydrogen. 2BCl₃(g) + 3H₂(g) → 2B(s) + 6HCl(g)

• A) -18.2 J/K • mol
• B) 18.2 J/K • mol
• C) 289.5 J/K • mol
• D) 370.4 J/K • mol
• E) 579.0 J/K • mol

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Definitions:

Independent Variables

Factors that are manipulated or controlled in an experiment to determine their effects on dependent variables.

Multiple Regression Model

A statistical technique that models the relationship between a dependent variable and two or more independent variables.

Independent Variable

The variable in an experiment or study that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Dependent Variable

The variable in an experiment or study that is expected to change as a result of manipulations of the independent variable.