The percentage by mass of chlorine
a. would be the same in FeCl3 as in FeCl2.
b. would be greater in FeCl3 than in FeCl2.
c. would be less in FeCl3 than in FeCl2.
d. cannot be determined without additional information.
b
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Photon Energy: A photon of blue light and a photon of red light are traveling in vacuum. The photon of blue light
A. has a smaller wavelength than a photon of red light and travels with the same speed. B. has a smaller wavelength than a photon of red light and travels with a greater speed. C. has a longer wavelength than a photon of red light and travels with the same speed. D. has a longer wavelength than a photon of red light and travels with a greater speed.
The atmosphere of Titan is composed mostly of
A) oxygen. B) methane. C) carbon dioxide. D) hydrogen. E) nitrogen.
How many forces act on an upwardly tossed coin when it gets to the top of its path?
A) one; the force due to gravity B) two; gravity and the force in the coin itself C) three; gravity, the coin's internal force, and a turnaround force D) none of the above
Waves of amplitudes 0.4 m and 0.3 m interfere while traveling in the same direction with the same speed. If the wavelengths are the same, what are the resulting largest and smallest amplitudes possible?
1.0.7 m and 0.5 m 2.0.7 m and 0.1 m 3.0.5 m and 0.35 m 4.0.5 m and 0.1 m