Which of the following is TRUE? Group of answer choices a, A buffer is most resistant to pH change when [acid] = [conjugate base] b. An effective buffer has very small absolute concentrations of acid and conjugate base. c. None of the above are true. d. A buffer can not be destroyed by adding too much strong base. e. It can only be destroyed by adding too much strong acid. f. An effective buffer has a [base]/[acid] ratio in the range of 10 - 100.

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive