Which of the following is not a property of an aqueous solution of an acid?
a. Reacts with many metals to liberate hydrogen gas
b. Changes the color of litmus dye from red to blue
c. Tastes sour
d. Conducts an electric current
b
You might also like to view...
Which of the following is NOT a method used by astronomers to detect and study exoplanets?
A. direct imaging B. gravitational lensing C. rotational mapping D. doppler shift E. transit detection
Star formation ceased first in the:
A) nucleus. B) spiral arms. C) bulge. D) halo. E) galactic disk.
What is the minimum distance of two points on the moon that can be just resolved by the Keck 10. meter telescope in Hawaii (use a wavelength of 600. nm, lunar distance of 380. thousand Km):
(a) if there were no atmosphere? (b) if the atmosphere limits resolution to 0.2 arc-sec?
When a star has stopped contracting and settled down, where is it in the H-R diagram?
A. below the main sequence in the lower left B. in the upper right as a red giant C. on the main sequence D. in the instability strip E. It is not on the H-R diagram at that time.