A fictional weak base, ZaH2, reacts with water to yield a solution with an OH– ion concentration of 2.68 × 10–4 mol/L. The chemical equation for the reaction is ZaH2(aq) + H2O(l) ⇌ ZaH3+(aq) + OH–(aq). If [ZaH2] at equilibrium is 0.0997 mol/L, what is the value of Kb for ZaH2?

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

Compare and contrast refraction of light and sound will give brainliest

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next