How many atoms are in 27.0 grams of aluminum (Al)?
a. 1.50 X 1023 atoms
b. 2.01 X 1023 atoms
c. 3.01 X 1023 atoms
d. 6.02 X 1023 atoms
e. none

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°

The organs inside the body and how they function together

Acompound has the molecular formula c3h8. which class of organic compounds does it belong to?