The hydrogen fluoride, HF, molecule is polar by virtue of polar covalent bonds – in the covalent bond electrons are displaced toward the more electronegative fluorine atom. Ammonia, NH3, molecule the three N−H bonds have only a slight polarity (toward the more electronegative nitrogen atom).
Answer: 8 moles Explanation: Nc2H6= 4 mol 2C2H6 + 7O2 → 4CO2+6H2O CO2=4/2⋅4 NCO2= 8 moles ( I write this on paper so the letters and format might be confusing) sorry!!
