HELP calculate the molality of a solution prepared by dissolving 2.50 mol of KCI into 2.00 L of solution 

How have the greenhouse gasses increased from the year 2000 to 2018

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 ?

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device