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Having Issues with Physics question? Could ice be heated to the point of emitting enough radiation in the visible range to be perceived by the eye while staying ice? Is this factored polynomial (x-2)^2(x^2+2x+4) degree 3? 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.? Algebra help! 0=cos(c/2)/2 this problem is getting a little intimidating can someone please give step by step detail on how to solve?