What does this weather map symbol represent, and what is its meaning?
a. moving front: the area between two air masses where is constantly in motion
b. stationary front: the boundary between two air masses where no air is moving
c. cold front: the leading edge of a cold air mass is pushing against a warm air mass
d. warm front: the leading edge of a warm air mass is pushing in to replace a cold air mass

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