Complete the passage to describe the relationship between kinetic energy, internal energy, thermal energy, and temperature. As the average kinetic energy of a substance increases, the internal energy __Decreases or Increases__ , and so its thermal energy __Decreases or Increases__. As the thermal energy of a substance increases, the temperature __Decreases or Increases__ .

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife