Chemistry, 10.03.2020 20:02, isalybeaudion2205
Lucas rubs a plastic ruler on his sweater. He waves the ruler above a pile of shredded paper and notices that the pieces of paper get attracted to the ruler. Which attractive force is responsible for this A. tension force B. normal force C. magnetic force D. electric force
Answers: 3
Other questions on the subject: Chemistry
Chemistry, 21.06.2019 22:20, andybiersack154
Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.
Answers: 1
Chemistry, 22.06.2019 01:20, whrjegt4jrnfdvj
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.
Answers: 2
Chemistry, 22.06.2019 14:00, leahstubbs
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
Do you know the correct answer?
Lucas rubs a plastic ruler on his sweater. He waves the ruler above a pile of shredded paper and not...
Questions in other subjects:
Social Studies, 09.10.2019 13:10
Health, 09.10.2019 13:10
Mathematics, 09.10.2019 13:10
