How do you balance Ga(Cn)3 + Sn(BrO3)4?

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

Tell me the iupac name of the following compounds:

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2