A chemical analysis apparatus is equipped with analysis sections having openings, means for supplying samples or reagents from the openings, means for combining and mixing samples with reagents to obtain droplets as liquids to be measured, and means for measuring the physical properties of the liquids to be measured during reaction or after completion of reaction. Furthermore, plate members are provided facing each other in analysis sections and a plurality of electrodes are provided on the plate member faces that face each other. Voltage is applied from the plurality of electrodes to the droplets of the samples and the reagents.