4 AlF3 + 3 O2 > 2Al2O3 + 6 F2 How many moles of AlF3 is needed to produce 8.25 moles of F2 from the given balanced equation shown above? (SHOW WORK)

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

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