You have a sample of 3.01 x 10^23 atoms of silver. How much does this sample weigh?
A) 0.0500 g
B) 2.00 g
C) 53.9 g
D) 107.9 g
C
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Contact metamorphism along sills and dikes may produce metamorphosed zones many kilometers wide
Indicate whether the statement is true or false
Zooxanthellae are ________
A) an endangered species of fish in the Pacific Ocean B) an invasive species of kelp in the Indian Ocean C) symbiotic algae that provide corals with energy via their photosynthetic activity D) symbiotic bacteria that decompose tissues of dead animals in oceans E) symbiotic bacteria that fix nitrogen in oceans
A major tsunami forms somewhere in the Pacific about once every ____ years
a. ?10 b. ?2 c. ?100 d. ?20 e. ?50
Which roofing design is the most hurricane-resistant?
a. sloped, clay tile b. flat, wood shingle c. flat, metal d. flat, concrete tile e. sloped, stucco