In the reaction 2 CuBr + F2 → 2CuF + Brz, how many grams of bromine (Bra) are produced from 204 moles of CuBr?

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

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