The correct response would be 3. The alkaline earth metals would tend to lose its valence electrons, in this case 2 of them at different energy levels, to form the same respective ion, which is +2.
It is actually a Colloid, which means it will never mix and settle.<span />
Methane (CH4) = 1 carbon atom, 4 hydrogen
Sulphuric Acid (H2SO4) = 2 hydrogen atoms, 1 sulfur and 4 oxygen.
