Which atom has the highest ionization energy? magnesium, barium, calcium, beryllium

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong