What bond angle is most closely associated with a tetrahedral distribution of electron density?
A) 90°
B) 109.5°
C) 120°
D) 180°
B
Environmental & Atmospheric Sciences
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The Soviet Union would have been more conveniently integrated if
A. it had adopted a democratic model of governance. B. population density in the hinterlands was greater. C. the major waterways flowed east instead of west. D. the major waterways flowed south instead of north.
Environmental & Atmospheric Sciences
The earliest fish were ____
A)ray-finned B)boney-finned C)cartilaginous D)jawless E)jawed
Environmental & Atmospheric Sciences
What is an element?
What will be an ideal response?
Environmental & Atmospheric Sciences
What texture is displayed by the igneous rock in this photograph?
A. glassy B. porphyritic C. vesicles D. breccia E. None of these.
Environmental & Atmospheric Sciences