Chemistry, 19.03.2021 15:50 achewitt3965
An element, βAβ, has 3 shells of electrons. Its 3rd shell contains 7 electrons. βAβ covalently bonds to hydrogen. Describe and explain the bonding in the molecule that is formed.
Answers: 3
Chemistry, 21.06.2019 14:10
Which of these will change if the air in aclosed bottle is heated? abcdthe mass of the airthe composition of the airthe air pressure in the bottlethe number of air molecules in the bottle
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 04:00
Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.
Answers: 3
Chemistry, 22.06.2019 06:10
How many moles of gas are present if p=11 atm, v=12l, t=185k?
Answers: 1
An element, βAβ, has 3 shells of electrons. Its 3rd shell contains 7 electrons. βAβ covalently bonds...
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