A solution with pH greater than 7 is classified as a(n) ______________
Fill in the blank(s) with correct word
base
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If a fossil bone is found to contain 1/32 as much Carbon-14 as the bone of a living animal, what is the approximate age of the fossil? (half-life of 14C = 5 730 years)
a. 1.83E+5 years b. 2.87E+4 years c. 1.15E+3 years d. 5.55E+3 years e. 1.79E+2 years
When the first law of thermodynamics is applied to an ideal gas that is taken through an isothermal process
A. 
B. W = 0.
C. Q = 0.
D. none of the above.
You will see that the Universe is almost 14 billion years old. That means that we see the most distant galaxies as they were when the Universe was:
A.) A few thousand years old. B.) 1-2 million years old. C.) 1-2 billion years old. D.) 4-6 billion years old. E.) 13 billion years old.
The sky appears "blue" because of
A) Bragg's Law. B) Rayleigh scattering. C) Brewster's polarization. D) dichroism. E) birefringence.