When Two Elements, a and B, Form Two Different Compounds

question 93

Multiple Choice

When two elements, A and B, form two different compounds, the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers. Which law does this refer to?

• A) Law of definite proportions
• B) Law of the conservation of mass
• C) Law of modern atomic theory
• D) Law of multiple proportions
• E) First law of thermodynamics

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Definitions:

F-distribution

A probability distribution used in analysis of variance (ANOVA), especially relevant when comparing variances across different samples.

Kruskal-Wallis Test

A non-parametric statistical test that compares three or more independent samples to determine if at least one sample distribution stochastically dominates one other sample.

Critical Value

A threshold value used in hypothesis testing which separates the region where the null hypothesis is rejected from the region where it is not rejected.

Kruskal-Wallis Test

A nonparametric method for testing whether samples originate from the same distribution, used when the ANOVA assumptions are not met.