What do these red/yellow/orange-precipitate reactions have in common? (choose the best answer)

They all made the same color.

They all have a barium (Ba+2) cation.

They all have a chromate (CrO4-2) ion.

They all have a chloride ( C1-1) ion.

Which of the following electromagnetic waves can create ions?

What is the molar mass of ca(cio4)2

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