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When demand is elastic, a fall in price causes total revenue to rise because
Hydrogen Ions
Positively charged atoms of hydrogen, which contribute to acidity when present in high concentrations in solutions.
Acids
Substances that release hydrogen ions (H+) when dissolved in water, typically having a sour taste and capable of turning blue litmus paper red.
Bases
Chemical substances that can accept hydrogen ions (H+) and are characterized by a pH greater than 7 when dissolved in water.
Hydrophilic
Describing molecules or substances that have a natural affinity for water and can dissolve in or absorb water easily.
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