The total bonding energy for the products of a reaction is 2535 kj/mol and the bonding energy of the reactants is 1375 kj/mol. calculate the change in enthalpy, and classify the reaction as endothermic or exothermic.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Which of the following statements about acidic water is true? a. acid has no effect on the h, o molecules. b. the solution contains a larger number of oh ions than h, o ions. c. the solution contains a larger number of h, o ions than qh ions. d. the solution contains an equal number of h, o ions and oh ions. none of the above e.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)