The triprotic acid H 3 A H3A has ionization constants of K a1 = 2.50 × 10 − 3 Ka1=2.50×10−3 , K a2 = 5.60 × 10 − 6 Ka2=5.60×10−6 , and K a3 = 6.47 × 10 − 12 Ka3=6.47×10−12 . Calculate the H + H+ concentration and the ratio [ H 2 A − ] [ H 3 A ] [H2A−][H3A] for a 0.0570 0.0570 M solution of NaH 2 A NaH2A .

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged