Find the constant term in the expansion of [In which equation is the metal reduced?
(a) 2[MnO– + 5[C2O4]2– + 16H+ → 2Mn+ + 10CO2 + 8H2O
(b) [Cr2O7]2– + 2[OH]– → 2[CrO4]2– + H2O
© CuCO3 + 2HCl → CuCl2 + CO2 + H2O
(d) Mg + 2HCl → MgCl2 + H2

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter