Question 31
5 pt
Which statement about intermolecular forces is not true?
A. In a sampl...
Question 31
5 pt
Which statement about intermolecular forces is not true?
A. In a sample of CCl4, intermolecular forces occur between CCl4 molecules.
B. For molecules of a similar size, hydrogen-bonding is generally stronger than London (dispersion) forces.
C. Samples of nonpolar molecules usually exhibit London (dispersion) forces only.
D. Dipole-dipole intermolecular forces are found between nonpolar molecules.
Answers: 3
Chemistry, 22.06.2019 10:30
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o β k + o2 (b) na + i2 β nai (c) cu(no3 )2 + naoh β cu(oh)2 + nano3 (d) kclo3 β kcl + o2 (e) ca(no3 )2 + hbr β cabr2 + hno3 (f) sn(oh)2 β sno + h2 o (g) p4 + n2 o β p4 o6 + n2 (h) fe + al2 (so4 )3 β feso4 + al (i) alcl3 + na2 co3 β al2 (co3 )3 + nacl (j) c3 h6 + o2 β co2 + h2 o
Answers: 1
Chemistry, 22.06.2019 17:20
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for Ξ΄g, Ξ΄h, and Ξ΄s for the adsorption of water.
Answers: 2
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