In the reaction c7h16 + __o2 → 8h2o + 7co2, what coefficient should be placed in front of o2 to balance the reaction?
select one:
a. 7
b. 8
c. 11
d. no coefficient is needed

Why are the trends and exceptions to the trends in ionization energy observed?

Draw metallic bonding if two copper

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm