19. What is the energy required to melt 12.1 g Zn metal if its á Hr=112 J/g?
A) 9.25 J
B) 0.1...
Chemistry, 17.05.2021 05:40 ginger87771
19. What is the energy required to melt 12.1 g Zn metal if its á Hr=112 J/g?
A) 9.25 J
B) 0.108J
C) 124 )
D) 1360 J
Answers: 3
Chemistry, 22.06.2019 20:40
Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°
Answers: 1
Chemistry, 23.06.2019 04:00
Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)
Answers: 1
Chemistry, 23.06.2019 04:31
How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.
Answers: 1
Health, 25.10.2019 14:43
Social Studies, 25.10.2019 14:43
History, 25.10.2019 14:43
English, 25.10.2019 14:43
History, 25.10.2019 14:43
History, 25.10.2019 14:43
Mathematics, 25.10.2019 14:43
Mathematics, 25.10.2019 14:43
Computers and Technology, 25.10.2019 14:43