You are given the reaction cu + hno3 → cu(no3)2 + no + h2o. which pair of half-reactions represents the balanced half-reactions for the reaction? 3cu → cu2+ + 6e- 2n5+ + 6e- → 2n2 cu → cu2+ + 2e ns+ + 3e → n2 2cu → 2cu2+ + 6e 3n5* + 6e → 3n2+

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in 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