Chemistry, 05.11.2020 19:20, kayleewoodard
A. When dichloromethane and water are mixed in a separatory funnel, which one will form the bottom layer?
B. When ethyl acetate and water are mixed in a separatory funnel, which will form the bottom layer?
C. If propylene glycol (density = 1.01 g/mL) is mixed with water in the separatory funnel, which will form the bottom layer?
Answers: 3
Chemistry, 22.06.2019 03:00, bchagnard2122
Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?
Answers: 2
Chemistry, 22.06.2019 12:30, hayleyconsole
Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
Answers: 3
Chemistry, 22.06.2019 15:00, emmalie52
Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .
Answers: 1
Chemistry, 23.06.2019 01:30, emfranco1
Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.
Answers: 1
A. When dichloromethane and water are mixed in a separatory funnel, which one will form the bottom l...
Computers and Technology, 25.02.2020 00:03