The rule of constant proportions expresses that:

Question

Quizplus · Accepted Answer

The rule of constant proportions states that the relative concentration of ions in a compound is always the same, regardless of the compound's source. This means that for a given compound, the ratio of the masses of each element present will always be the same. Therefore, the option that best reflects this rule is E, which states that the relative concentration of ions does not change. Choices A-D are incorrect because they suggest variability in the composition of seawater (salinity, percentage of sodium, percentage of chlorine) based on location, depth, or season, which contradicts the rule of constant proportions.

The Rule of Constant Proportions Expresses That