Mineral sample #6 is ________.
Galena - PbS
Galena - FeS2
Galena - ZnS
Galena - PbS
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Between A and D?
A. 0 s B. 2 s C. 3 s D. 4 s E. 5 s F. Other (specify)
In our solar system, Jovian planets are
A) large, made mostly of gases and liquids with low densities, and found far from the Sun B) small, made of pure rock with high densities, and found close to the Sun C) large, made of pure gases with low densities, and found far from the Sun D) small, made mostly of rock and iron with high densities, and found close to the Sun
A refracting telescope has an eyepiece of focal length -80 mm and an objective of focal length 36 cm. What is the magnification of this instrument?
What will be an ideal response?
One mole of an ideal gas has a temperature of 25°C. If the volume is held constant and the pressure is doubled, the final temperature (in °C) will be
a. 174 b. 596 c. 50 d. 323 e. 25