European nations had different reasons for exploring North America. Which reason was probably MOST important to the Spanish?

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

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 ?