Chemistry, 27.03.2020 17:44 xxcooleduardo787xx
Several interesting observations from the world around you are listed below. Which of these is NOT explained by a colligative property?
1.) At high altitude it takes longer to cook spaghetti.
2.) The freezing point of water is lowered when salt is added.
3.) A lobster will die when placed in fresh water.
4.) Water boils at a higher temperature when salt is added.
5.) Antifreeze is added to a car radiator to keep the car from overheating.
Answers: 1
Chemistry, 21.06.2019 22:30
Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4
Answers: 3
Chemistry, 22.06.2019 01:20
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 19:00
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
Answers: 1
Chemistry, 22.06.2019 22:30
Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?
Answers: 3
Several interesting observations from the world around you are listed below. Which of these is NOT e...
Mathematics, 19.03.2021 08:50
Mathematics, 19.03.2021 08:50
History, 19.03.2021 08:50
Computers and Technology, 19.03.2021 08:50
Computers and Technology, 19.03.2021 08:50
Social Studies, 19.03.2021 08:50
Mathematics, 19.03.2021 08:50
Health, 19.03.2021 08:50