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HELP! Predict the equilibrium concentration of H+ in a 0.25 M solution of H2SO4-? Ka2=0.012? How do I tolally block linkedin? Consider the polynomial x^5-4x^2-7x-2=0. Show that the closed circle centered at x=0 of radius two contains at least two roots.? What is the specific heat of a substance if 130 kJ of heat is needed to raise 7.6 kg of the substance from 18.0 ∘C to 37.2 ∘C? If someone is paid $75 in one week, how much money are they making in one hour?