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A geоlоgist wаnts tо investigаte how аcidic water affects the weathering of limestone. Three identical limestone samples are placed in separate containers for four weeks. One sample is submerged in distilled water (pH 7), a second in mildly acidic water (pH 5), and a third in strongly acidic water (pH 3). At the end of the experiment, the geologist measures how much mass each limestone sample has lost. What would the best hypothesis be?