1. space aliens visited you last night and left you with a “present”. they left behind a white substance you called “sploam”. this substance is liquid at room temperature, but when you place it in a refrigerator it turns to a white solid. when you take it back out of the refrigerator, it turns into a white liquid again. what kind of change (chemical or physical) most likely occurred? explain why to support your answer

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

Awalk up the phase change graph worksheet

The substances that are necessary for producing of certain hormones and that store and transport vitamins