Draw a picture showing what happens on the molecular level when the following substances are added to water: a. A soluble compound that dissociates into ions

b. A soluble compound that does not dissociate into ions

c. An insoluble compound

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Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Fred is studying a substance that is made out of only one element. this means that