Assertion: calcium's effect | /r/CapableOf | decrease with ph
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Source sentences:
text: The solubility product for CaCO 3 (K sp ) and the dissociation constants for the dissolved inorganic carbon species (including K a2 ) are all substantially affected by temperature and salinity, with the overall effect that [Ca2+] max increases from freshwater to saltwater, and decreases with rising temperature, pH, or added bicarbonate level, as illustrated in the accompanying graphs.