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Consider the balanced chemical equation: 4 Na(s) + O2(g) → 2 Na2O(s) How many grams of...
Consider the balanced chemical equation: 4 Na(s) + O2(g) - 2 Na2O(s) How many moles of Na2O could be produced from 2.18 g of Na? 0.0948 mol 0.0474 mol 4.36 mol 2.00 mol
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?
2) Given the following equation: Na2O + H2O → 2NaOH a) How many moles of NaOH are produced from 6.77 moles of Na2O? b) How many grams of NaOH are produced from 120 gratis of Na,O? c) How many grams of Na, are required to produce 160 grams of NaOH?
Consider the following reaction 4 Na(s) + O2(g) - 2 Na2O(s) Establish oxidation numbers. Establish the number of electrons in each species. Is there a connection between the change in oxidation numbers and the change in number of electrons?
Sodium and oxygen react to produce sodium oxide: 4 Na(s) + O2 ( g) ------>2Na2O (s). How many grams of sodium oxide are produced when 2.3 grams of sodium react according to the above chemical equation?
For questions 4-5 consider the following balanced chemical equation: 4NH3(g) + 702(g) → 4NO2(g) + 6H2O(g) 4 - How many grams of ammonia are required to form 254.32 g of nitrogen dioxide? 5 - How many grams of nitrogen dioxide can be formed from the reaction of 6.87 g of O2 with excess of ammonia?
4 Na(s) + O2(g) --> 2 Na2O(s) ΔH0 = - 828 kJ This reaction is _______, and therefore heat is_____ by the reaction. a)exothermic, absorbed b)exothermic, released c)endothermic, absorbed d)endothermic, released
4 Na + O2 → 2 Na2O. What is the theoretical yield of Na2O in moles from 9.0 mol of O2?
13 According to the following balanced chemical equation, if you want to generate two moles of H20 how many grams of O2 do you need? 2 H2 + O2 → 2 H2O 1. A) 8 2. B) 16 3. C) 32 4.D) 4 15. Which equations are balanced? 1. a) Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (9) 2. b) 3A1 () + 3 02 (1) ► 2Al2O3 (5) 3. c) 2Hgo (s) → 2 Hg (1)...
1. For the balanced chemical reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(ℓ), how many moles of H2O are produced when 0.669 mol of NH3 react? 2.For the balanced chemical reaction: 4 KO2(s) + 2 CO2(g) → 2 K2CO3(s) + 3 O2(g) determine the number of moles of each of the products that are formed when 6.88 mol of KO2 react. Please explain, thanks!