Clasificar sin balancear las siguientes ecuaciones quimicas h2so4 + sn(oh)4 sn(os4)2 + h2o por favor

Why does his teacher ask him to balance the equation by including the correct coefficient

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.

Adilute aqueous potassium nitrate solution is