Which one of the following is an example of an acid-base reaction? A. HCI + KOH --> H2O + KCl

B. 2CuS + 302 –>2CuO + 2SO2

C. S8 + 802 —> 8SO2

D. C3H8 + 5O2 —> 3CO2 + 4H2O

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Compare and contrast solutions and suspensions