Example for next four problems:
Compound formula: MgCl2
Element: Mg
# of At...
Chemistry, 08.11.2020 14:00 kenleighbrooke67
Example for next four problems:
Compound formula: MgCl2
Element: Mg
# of Atoms: 1
Element: Cl
# of Atoms: 2
gram formula weight (g): 95.21
Compound Formula: HCI
Element H
# of Atoms: (Options are 1, 2, and 3)
Element: CI
# of Atoms: (Options are 1, 2, and 3)
gram formula weight (g): (Options are 36, 36.46, and 36.50)
Answers: 2
Chemistry, 22.06.2019 04:00, mgnbrnne
Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.
Answers: 2
Chemistry, 22.06.2019 23:00, soccerplayer17
What is the number of neutrons in an atom with atomic mass of 35
Answers: 2
Chemistry, 23.06.2019 00:00, baseball1525
Which item is most likely part of the safety contract
Answers: 1
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