39. Which of the following species has the highest concentration at the equivalence point when 0.10 mol L NH3(29) is titrated by 0.20 mol
L' HCLag? Given that Kb= 1.8x10 for NH; and K = 1.0-10-44
A. H30*
B. OH-
C. NH3
D. NH4+

What is the nature of the ca-cl bond in a molecule of calcium chloride (cacl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.16?

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %