need answers asap plz QUESTION 13 How many grams O2 are needed to react completely with...
need answers asap QUESTION 14 What mass of B5H9 is needed to react completely with 235 gram 02 according to this equation? 2 B5H9 + 1202 -> 5 B203 + 9H20 0 77.3 g O 18.1 g O 57.2 g O 6.08 g 0 44.0 g O 14.5 g O 30.6 g 0 73.6 g
QUESTION 13 How many grams 02 needed to react completely with 45.2 grams B2H6, according to the following balanced equation? B2H6 + 302 -> B2O3 + 3H20 1.93 g 4.959 0.05949 1579 3.08 9 0.4989 2.32 0.780 9
How many grams of Al2O3 are produced when 38.9 grams of O2 react completely with Al? 4 Al (s) + 3 O2 (g) → 2 Al2O3 (s)
4 Na(s) + O2(g) → Na2O(s) a. How many grams of sodium are needed to completely react with 2.80 liters of Oz at STP? b. What volume of O, at 25°C and 2.00 atm is needed to completely react with 4.60 grams of sodium?
NEED ANSWERS ASAP PLZ QUESTION 5 H2 and F2 react according to the following equation, forming HF. H2 + F2 --> 2HF (AH° = -271 kJ/mol rxn) If H2(g) and F2(g) were reacted in a calorimeter, the reaction that occurred would be: O exothermic, and the water temperature in the calorimeter temperature would rise. O endothermic, and the water temperature in the calorimeter temperature would rise. O endothermic, and the water temperature in the calorimeter temperature would fall. O exothermic,...
NEED ANSWERS ASAP PLZ QUESTION 4 AH° = -560 kJ Look at this reaction: 2H2(g) + O2(g) --> 2H20(1) Which one of the following statements is true? O Heat is absorbed during the reaction O The reaction is endothermic O The enthalpy change is positive O This reaction is exothermic QUESTION 3 If AH = 25 J for a certain process, that process O releases heat O is exothermic. O is endothermic. O can't tell
NEED ANSWERS ASAP PLZ QUESTION 15 9.00 grams of C2H4 is reacted with 5.50 gram F2 according to the following equation. How many gram of HF can be formed, assuming 100% yield? (i.e., what is theoretical yield?) C2H4 + 6F2 --> 2CF4 + 4 HF Hint: Find limiting reagent. O 0.281 g 0 0.830 g O 1.93 g O 17.219 0 20.55 g O 19.34 g 0 12.04 g 0 25.91 g
5) How many moles of hydrogen gas are needed to react with oxygen to form one mole of 5) water? 2H2(8) + O268) - 2H20(1) A) 4 mol B) 1 mol C) 2 mol D) 0.5 mol E) 6 mol 6) Incomplete combustion occurs when there is insufficient oxygen to react with a compound. The suffocating gas carbon monoxide is a product of incomplete combustion. How many moles of oxygen gas are required for the complete combustion of 11.0 moles...