Q1. If a piece of ice absorbs 131 J of heat energy, how much was lost by the surroundings? Q2. Suppose you take 208 grams of water at 24 oC and put it into the freezer to make ice where is reaches -3 oC. Calculate the energy change. ( csolid =2.10 J/goC, cliquid = 4.18 J/goC, Hfusion = 333J/g)

Calculate the number of molecules present in 0.750 mol of mgo.

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.