Is an element compound or mixture that can contain more than one type of atom?

What shape would a molecule with two bound groups and two lone pairs have?

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 ?

Correct relationship between molecular formula and empirical formula