8.5 g of metal is placed in a graduated cylinder containing water. the level of water increases from 40.0 ml to 44.5 ml. the density of the metal is g/ml. (use the correct number of significant figures in your answer)

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.

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms