<h2><u>ANSWER</u></h2>
Two isotopes of helium ( helium 3 and helium 4) show superfluidity whem they are liquified by cooling to a very low specific temperature. One isotope of rubidium and lithium posses this property at low temperature.
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The answer is <span> H+ low and OH- high. T</span>he hydrogen/hydroxide ion concentration of the unknown liquid becomes H+ low and OH- high.