What is the specific gravity of hydrogen?

What is the specific gravity of oxygen?

What is specific gravity of lipid

The specific gravity of a mixture of two substances of equal volumes is 4. The specific gravity of the mixture becomes 3 when these two substances are mixed in equal masses. Calculate the specific gravity of the substances.

A body floats on a liquid of specific gravity S_(1) with f part of it immersed in that liquid. It also floats on another liquid of specific gravity S_(2) with (1 - f) part of it immersed. Prove that the specific gravity of the body = (S_(1)S_(2))/(S_(1)+S_(2)) .

A piece of wood weights 40gxxg in air. A piece of brass of mass 12 g is tied to the wooden piece and the combination floats just totally immersed in water. If the specific gravity of brass is 8.5, calculate the specific gravity of wood. [Density of water = 1g*cm^(-3) ]

Suspended from a thread, a piece of iron of mass 160 g remains immersed completely in water. If the specific gravity of iron is 8, calculate the tension in the thread.

What is the chemical symbol of hydrogen?