The organisms potentially impacted by ocean acidification are ________.
A. echinoderms
B. crustaceans
C. mollusks
D. coral
E. all of these
Answer: E
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According to the following reaction, which molecule is acting as a base? H2O + H2SO4 ? H3O+ + HSO4-
A) H2SO4 B) H2O C) H3O+ D) HSO4- E) none of the above
________ is not part of the hydrologic cycle.
A) Water infiltrating into the soil and bedrock B) Water evaporating from a lake C) Calcium carbonate dissolving in soil water and groundwater D) Water moving into creeks and streams following a rainstorm
Which pollutant is formed during the incomplete combustion of carbon-containing fuels?
A) sulfur dioxide (SO2 ) B) carbon monoxide (CO) C) carbon dioxide (CO2 ) D) volatile organic compounds (VOCs)
Suppose a new element named questinium has two isotopes. These isotopes are Qu-297 (40.30%, 296.78 amu) and Qu-301 (59.70%, 300.88 amu). What is the atomic weight of questinium, reported to the correct number of significant digits?
A) 299 amu B) 299.0 amu C) 299.2 amu D) 299.23 amu