- Rank these in order of increasing pH NaF, NH4Cl, KNO3, KCH3CO2?

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If f(x,y)=x^(2)+y^(2)-2x and D is triangular region with vertices (2,0) (0,2) and (0,-2). Find absolute max and min of f on the region of D.? Calculate the pH of 1.0 L of the solution that is 0.44 M in NH3 and 0.16 M in NH4Cl upon addition of 0.020 mol of solid NaOH. pKb = 4.75.? Would it be cool (or useful) if Google Maps can add option for a overlay of weather radar for rain? What is the halfway point between Malibu and Cape Fear? What two aspects of an atom's element structure does its location on the periodic table reveal?