When a Chemical Equation Is Balanced, It Will Have a Set

question 2

Multiple Choice

When a chemical equation is balanced, it will have a set of whole number coefficients that cannot be reduced to smaller whole numbers. What is the coefficient for O₂ when the following combustion reaction of a hydrocarbon is balanced? ________ C₇H₁₄ + ________ O₂ → ________ CO₂ + ________ H₂O

• A) 42
• B) 21
• C) 11
• D) 10
• E) None of these answers is correct.

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Definitions:

Variability

It refers to the extent to which data points in a statistical distribution or dataset diverge from the average or mean.

F-ratio

A statistical measure used in the analysis of variance (ANOVA) to assess the significance of the difference between group means by dividing the variance between groups by the variance within groups.

Between-group Variance

Between-group variance measures the variability of group means around the overall mean, used in analyzing differences between groups.

F-ratios

Statistical values used in the analysis of variance (ANOVA) tests, indicating the ratio of variance between groups to the variance within groups.