객관식When 64.0 g of C_2H_2 (acetylene) are completely combusted in oxygen, how many moles of H_2O are produced?93views
객관식In the combustion of carbon, according to the reaction C + O_2 → CO_2, how many moles of oxygen gas (O_2) are required to produce 7.00 moles of carbon dioxide (CO_2)?106views
객관식If 60 grams of ethane (C_2H_6, molar mass 30 grams/mol) react completely with excess oxygen according to the equation 2 C_2H_6 + 7 O_2 → 4 CO_2 + 6 H_2O, how many moles of CO_2 are produced?92views
객관식Given the reaction AgNO_3 + NaCl → AgCl + NaNO_3, how many moles of AgCl are produced from 15.0 mol of AgNO_3, assuming excess NaCl?100views
객관식Hexane (C6H14) combusts according to the equation: 2 C6H14 + 19 O2 → 12 CO2 + 14 H2O. How many moles of hexane (C6H14) must burn to produce 18.4 mol of carbon dioxide (CO2)?204views
객관식In the reaction of potassium permanganate (KMnO4) with oxalic acid (C2H2O4) to produce carbon dioxide (CO2), how many moles of KMnO4 are consumed to form 0.886 moles of CO2? (Assume the balanced equation: 2 KMnO4 + 5 C2H2O4 + 3 H2SO4 → 2 MnSO4 + K2SO4 + 10 CO2 + 8 H2O)256views
객관식In the reaction 2 H2S + O2 → 2 S + 2 H2O, which species has the greatest rate of appearance?136views