Ageologist finds a large rock containing a fern fossil. this kind of fern grew on land in hot, moist climates. what does this tell the geologist about the area at the time the rock was formed? the area was covered by an ocean. the area was hot and tropical. the area was muddy and wet. the area was snowy and cold.

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