What is the correct sequence of eras of the geologic time scale in order from oldest to youngest ?

cenozoic, paleozoic, mesozoic
cenozoic, mesozoic, paleozoic
paleozoic, cenozoic, mesozoic
paleozoic, mesozoic, cenozoic

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 which phase of mitosis do the spindle fibers pull the chromosomes apart to opposite sides of the cell ?

Astudent uses universal ph paper to find the ph of three solutions . solution a has a ph of 5 solution b has a ph of 11 and solution c has a ph of 7 identify which solution is acidic which solution is neutral and which solution is basic