Water containing high concentrations of ________ cations is called hard water. A)Ca²⁺ B)Mg²⁺ C)Na⁺ D)K⁺ E)Ca²⁺ or Mg²⁺

Name: Water containing high concentrations of ________ cations is called hard water. A)Ca 2+ B)Mg 2+ C)Na + D)K + E)Ca 2+ or Mg 2+
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Hard water contains high concentrations of calcium (Ca2+) and/or magnesium (Mg2+) cations. Choice E includes both these cations, making it the best choice. The other choices do not contain either calcium or magnesium.

Water Containing High Concentrations of ________ Cations Is Called Hard