Any reaction that absorbs 150 kcal of energy can be classified as
a. activated.
b. exothermic.
c. oxidation.
d. endothermic

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

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 ?

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.