What was Avogadro's hypothesis?
a. That under all conditions each liter of any gas contains the same number of molecules.
b. That under identical conditions each liter of all gases contains the same number of molecules.
c. That under ideal conditions each liter of all gases contains the same number of atoms.
d. That under identical conditions each liter of a particular gas contains the same number of molecules.
e. That under identical conditions each liter of all gases contains the same number of atoms.
b
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Answer the following statement(s) true (T) or false (F)
1. The sun’s mass is about 1000 times that of Jupiter, and the radius of Jupiter’s orbit is about 1100 times the sun’s radius. The center of mass of the sun/Jupiter system is inside the sun. 2. Two stars, one with radius r and the other with radius 3r, orbit each other so that their centers of mass are 25r apart. Assume that the stars have the same uniform density. This system’s center of mass is inside the larger star. 3. Kepler’s 2nd law applies to hyperbolic orbits. 4. Kepler’s 3rd law applies to hyperbolic orbits.
If a fish in a pond looks upward at 50° to the normal, it will see
A) the pond's bottom. B) the sky and possibly some tall surroundings. C) only the water's surface. D) none of the above
Resonance occurs when a 200-Hz tuning fork encounters a sound wave with a frequency of
A) 150 Hz. B) 200 Hz. C) 300 Hz. D) any of the above E) none of the above
Arrange the atoms magnesium, fluorine, strontium, and sulfur in order of increasing ionization energy