What is the most abundant gas in Titan's atmosphere?
A) methane
B) nitrogen
C) oxygen
D) hydrogen compounds
E) argon
B
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?Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface. The edges of the two mirrors meet at a 30°angle. A light ray that approaches mirror 1 is parallel to mirror 2. The angle of reflection of that ray from mirror 1 is
A. ?0°. B. ?30°. C. ?60°. D. ?90°. E. ?120°.
Which of the following is true of Venus?
A) Its atmosphere is transparent to visible light. B) Its atmosphere is transparent to infrared radiation. C) Its atmosphere is as dense as that of Earth. D) Its atmosphere is mostly composed of carbon dioxide.
The simplest reflector telescope design is the prime focus reflector
Indicate whether the statement is true or false
The sulfur hexafluoride molecule consists of one sulfur atom and six fluorine atoms. The atomic masses of sulfur and fluorine are 32.0 u and 19.00 u, respectively. What mass does one mole of this gas have?
a. 32.0 g b. 51.0 g c. 146 g d. 608 g