Atoms chemically bond to achieve an electron configuration as similar as possible to that of the ______________ atoms.
Fill in the blank(s) with the appropriate word(s).
inert gas
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Use the Gibbs phase rule
The frequency of induced voltage in a wire coil depends on
A) the frequency of current producing it. B) how frequently a magnet dips in and out of the coil. C) the number of loops in the coil.
Which of the following statements about parallax is not true?
A) You can demonstrate parallax simply by holding up a finger and looking at it alternately from your left and right eyes. B) The existence of stellar parallax is direct proof that Earth orbits the Sun. C) Measurement of stellar parallax allows us to determine distances to nearby stars. D) Observing stellar parallax requires only a single photograph taken through a powerful telescope. E) Ancient astronomers were unable to detect stellar parallax and used the absence of observed parallax as an argument in favor of an Earth-centered universe.
Two objects of different mass are released simultaneously from the top of a 20-m tower and fall to the ground. If air resistance is negligible, which statement best applies?
a. The greater mass hits the ground first. b. Both objects hit the ground at the same time. c. The smaller mass hits the ground first. d. No conclusion can be made with the information given.