Chemistry, 01.12.2020 16:40 nathaliereyes283
Which phrase best describes bronze?
o a pure metal
o a copper-tin alloy
o a mineral ore containing copper and tin
an ionic compound of copper and tin
Answers: 3
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Particles vibrate in a rigid structure and do not move relative to their neighbors.
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The ammonia molecule in the diagram has the observed bond orientation because
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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.
Answers: 2
Which phrase best describes bronze?
o a pure metal
o a copper-tin alloy
o a...
o a copper-tin alloy
o a...
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