Samples of limestone, granite, quartz, and stalactite are exposed to acidic groundwater. All other conditions being equal, which rock would weather most quickly?
A.
the limestone, because the acidic groundwater would dissolve the rock's calcite
B.
the granite, because the acidic groundwater would oxidize the rock's iron
C.
the quartz, because it would absorb the water, increasing the rock's density and placing added pressure on its molecules
D.
the stalactite, because the water would loosen the bonds that hold its molecules togethe
Answers: 2
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Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.
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Samples of limestone, granite, quartz, and stalactite are exposed to acidic groundwater. All other c...
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