Which outcome reduces hardness in water treatment when using a softening resin?

💡 Explanation

When hardness-causing ions displace cations within a resin, cation exchange capacity decreases because divalent ions accumulate, therefore hardness reduces, rather than increased anion transport or osmotic effects that are unrelated to the mechanism.

• Which consequence results when increased pressure causes liquid water to undergo a phase transition to ice?
• Which outcome results when variable thickness dielectric coating introduces wavelength-scale variations in light path?
• Which consequence results when thermal equilibrium isn't reached between stages in a multi-stage turbine?
• Which outcome results when antibonding molecular orbitals are selectively populated in a diatomic molecule?
• Which consequence results when a pressure vessel’s eigenfunctions are improperly modeled?
• Which outcome occurs when airspeed measurements deviate within Bernoulli's equation?