22) Oxygen with a -2 charge
23) Neon with a +2 charge
24) Fluorine with a -1 charge
25) Lithium with a +1 charge
Mercury is a homogenous mixture of two or more pure substances
It might change because of the amout of rain that fell in the year and the melting of ice which allows the water amount to increase
they can find dna at the crime scene wich will lead them to the guilty party