(1)5KI+KIO3+3H2SO4=3I2+K2SO4+3H2O
①5,1,3,3,3,3②5,2,4,9③4,2,1,2,2④3,4,2,1,2⑤2,9,3,3,5⑥2,16,10,2,5,8⑦2,5,6,2,5,3⑧5,2,1,5,1,1,1