Given the reaction below, how many grams of aluminum (Al) would be formed from 5.0 g of Fe? Reaction: 9 Fe + 4 A1:0, --> 3 Fe:O. + 8 AIM

a. 0.0029 g AI
b. 2.1 g Al
c. 2.7 g AI
d. 4.4 g AL

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3