The vertical columns on the periodic table can be called families or?

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .

Stage in which a typical star has completely stopped fusion