Chemistry, 24.12.2019 14:31 allisondelp6
1. who is the father of atomic theory? 2. who discovered the electron? 3. who expressed particles by wave equations? 4. who researched on radioactivity? 5. who discovered the "open spaces" model? 6. who applied quantum theory to atoms? .-rutherford, -bohr, -thomson, -curie, -dalton, -schrödinger
Answers: 2
Chemistry, 22.06.2019 05:30
Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change
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Chemistry, 22.06.2019 14:00
How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene
Answers: 2
Chemistry, 22.06.2019 18:00
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Chemistry, 23.06.2019 02:30
Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.
Answers: 1
1. who is the father of atomic theory? 2. who discovered the electron? 3. who expressed particles...
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