You need to make 2.00 L of a calcium hydroxide solution with pH= 12.50. What mass of the solid must be dissolved? (Note: the solubility of calcium hydroxide is 1.7 g/L at 20 degrees c, so long as this limit is not approached, the relatively low solubility of the compound does not preclude making this solution. )

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When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule

According to thomson, the atom is a positively charged cloud with electrons scattered throughout. what would the alpha particles do when they hit the foil if thomson were correct