Perform the indicated operation and simplify
X^2-2x-15/x^2+x-12*2x^2-6x/x^3+3x^2
analytical chemistry
A solution containing both Fe 3+ and Al 3+ can be selectively analyzed for Fe 3+ by buffering to a pH of 2 and titrating with EDTA. Th e pH of the solution is then raised to 5 and an excess of EDTA added, resulting in the formation of the Al 3+ - EDTA complex. The excess EDTA ...
analytical chemistry
A 10.00 mL aliquot of a solution of a weak acid , HA, whose pK a is 4.76 is titrated with OH - generated by electrolysis of water according to th e following scheme: 2 H 2 O + 2 e - ⇔ 2 OH - + H 2 (a) [5 points] If the end point in the titration is ob served ...
chemistry
A solution containing both Fe 3+ and Al 3+ can be selectively analyzed for Fe 3+ by buffering to a pH of 2 and titrating with EDTA. Th e pH of the solution is then raised to 5 and an excess of EDTA added, resulting in the formation of the Al 3+ - EDTA complex. The excess EDTA ...
Health
The answer is D. If you would pay attention to the book that you have and read it you would understand this and not have to post questions like this anyway. The answers can always be found online too. Start reading if you want to get into healthcare
English
put periods in and on I wouldn't have answered the phone, if I had known it was him, who is him? The grammar needs to be worked on and the last statement needs rewording and leave out ase
life orientation
Read your book and/or look online
math
d = ?, r=23ft/sec, t=12 sec
chemistry
Reaction: CaCO3 + 2 HCl -> CaCl2 + CO2 + H2O Calculate the molarity of hydrochloric acid solution if an initial mass of 4.568g of CaCO3 was reacted with 25.0mL of the acid and 2.678g of CaCO3 remain after the reaction is complete.
Calculus
Apply Rolle's theorem if possible and find c if y=x^(2/3)-16
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