Dissociation is the process in which
A) the bonds between atoms in a molecule are broken.
B) a molecule goes from the solid phase to the gas phase.
C) the bonds between electrons around an atomic nucleus are broken.
D) an element changes into another form.
E) an electron is shared between atomic nuclei.
A
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The temperature in a room is 77°F. What is the corresponding temperature in the Celsius scale?
A) 81°C B) 77°C C) 43°C D) 25°C E) 18°C
Intensity: A light source radiates 60.0 W of single-wavelength sinusoidal light uniformly in all directions. What is the amplitude of the electric field of this light at a distance of 0.400 m from the bulb? (?0 = 8.85 × 10-12 C2/N ? m2, ?0 = 4? × 10-7 T ? m/A, c = 3.00 × 108 m/s)
A. 162 N/C B. 212 N/C C. 82.1 N/C D. 150 N/C E. 52.9 N/C
A "supernova" is
A) an exploding galaxy. B) an exploding star. C) a slight flare-up of an aged star. D) a new dance step. E) a large new star.
The Kuiper Belt objects have orbits that
A) carry them thousands of AU beyond the Sun. B) stay out just beyond Neptune and close to the ecliptic. C) stay sixty degrees ahead of or behind Jupiter. D) cross the orbit of Mars at perihelion. E) cross the orbit of Earth at perihelion.