What is the molar mass of water, H2O?
A) 17.01 g
B) 18.02 g
C) 17.01 amu
D) 18.02 amu
B
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This photograph shows light-colored granite and darker diorite (both igneous rocks). Which of the following statements is true?
A) The light-colored unit is younger because granite is more continental than diorite.
B) The diorite is older because its weathered surfaces are darker.
C) The granite is younger because it crosscuts the diorite.
D) All of these are correct.
The tin compound used to strengthen teeth has the formula SnF2. Which of the following is the common name for this compound?
A) stannic fluoride B) stannous fluoride C) tin fluoride D) tin(II) fluorine
Sedimentary rock formed from the combined processes of weathering, erosion, transportation, deposition, lithification, and compaction of rock fragments of other rocks are
A) chemical. B) biochemical. C) organic. D) basaltic. E) clastic.
The depletion of stratospheric ozone could cause suppression of the human immune system
a. True b. False