Hydroboration-oxidation of an alkene, C7H12, gives a single product that exhibits 13C spectral data below. Broadband-decoupled 13C NMR: 26.1, 26.9, 29.9, 40.5, 68.2 δ DEPT-90: 40.5 δ DEPT-135: positive peaks at 40.5; negative peaks at 26.1, 26.9, 29.9, 68.2 δ Draw a structure for this compound.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?