If the reaction starts with 23.98g of Platinum iv sulfate, how many grams of iron viii sulfate will be produced iv sulfate?

May someone me with these science questions

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy