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Answer the following dont worry about 8 produce magnesium burns in. A 2Mg(s).O2(g) -- 2MgO() moles of O2 are consu...
12 only please D) 1 12) A 14.01 g sample of N2 reacts with 3.02 g of H2 to form ammonia (NH3). If ammonia is the only product, what mass of ammonia is formed? A) 17.03 g B) 23.078 C) 1.108 D) 3.02 g E) 14.01 g E) 2 ..). If ammonia is the only 12) 13) Why are the halogens among the most active nonmetals? A) They all have smaller diameters the B) Their valen
9) How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol. 4 KNO3(s) ? 2 K2O(s) + 2 N2(g) + 5 O2(g) 9) _______ A) 0 .724 mol O2 B) 0 .580 mol O2 C) 1 .73 mol O2 D) 0 .290 mol O2 E) 1 8.5 mol O2
Module 9 5. How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol. Half Credit for the right answer and half credit for showing work 4 KNO3(s) → 2 K20(s) + 2 N2(g) + 5 O2(g) A) 0.290 mol O2 B) 0.580 mol O2 C) 18.5 mol O2 D) 0.724 mol O2 E) 1.73 mol O2
AP Chemistry Number of Moles Practice: Part A) Lithium and nitrogen react to produce lithium nitride:6Li(s)+N2(g)→2Li3N(s). How many moles of lithium nitride are produced when 0.630 mol of lithium react in this fashion? Part B) How many moles of BCl3 are needed to produce 10.0 g of HCl(aq) in the following reaction? BCl3(g) + 3 H2O(l) → 3 HCl(aq) + B(OH)3(aq) Part C) How many moles of nitrogen are formed when 58.6 g of KNO3 decomposes according to the...
X 1. Aluminum reacts with oxygen to produce aluminum oxide 4 Al(s) + 3 O2(g) + 2 Al2O3(s) IF 3.0 moles of Alreact with excess O2, how many moles of AlzO3 can be formed? a) 1.0 mol b) 1.50 mol c) 3.0 mol d ) 4.0 mol e) 4.5 mol 10. What is the log of 5,400.05? a) 3.07 b) 3.37 c) 3.73 d) 37.32 e) 37.23 Short Answer Questions (True or False)
Thefollowingequationdescribestherustingofiron.Note:rustisFe2O3(s) Fe(s) + O2(g) Fe2O3(s) a. Balance the above equation. b. If you start with 100.0 grams of iron, how many moles of iron do you have? c. If you start with 100.0 grams of rust, how many moles of rust do you have? d How many moles of rust could be formed from 5.00 moles of iron? e. How many moles of rust could be formed from 5.00 moles of oxygen? f. If 50. moles of rust formed, how...
Which statement about the following chemical reaction is NOT correct? S8 (s) + 12 O2 (g) ------> 8SO3 (g) a) 256 g S8 requires 12 mol O2 in order to completely react. b) 1 mol S8 produces 8 mol SO3. c) For every 6 mol O2 consumed, 4 mol SO3 produced. d) In order to produce 8 mol SO3, 256 g S8 and 192 g O2 must react. e) If 641 g SO3 are produced, a total mass of 641...
14. Which statement is true, based on the following balanced equation: Pé(s) + 502(g) → 2PzOs (S) If 0.5 mole of P4 is allowed to react with 2.5 moles of O2, which of the following will be true? a) the Pa will react completely b) the O2 will react completely c) 1 mole of P2Os will be formed d) a and b e) a, b, and c -28
45. Refer to the following equation: 4NH3(g) + 70,() → 4NO2()+6H20() How many moles of ammonia will be required to produce 10.5 mol of water a. 4.20 mol b. 10.5 mol c. 7.00 mol d. 5.25 mol e. none of these 46. Refer to the following equation: 4NH3(Ⓡ) + 702() → 4NO2(%) +6H20(g) How many molecules of NO2 are produced when 4.16 mol of ammonia is completely reacted a. 16.64 b. 5.01 X 1024 c. 2.51 1024 d. 191 e....
32. Given the following data: A. P4(s)+ 6 Cl2(g)4 PCls(g) B. P4(s)+ 5 02(g) P4O10(s)AH=- 2967.3 C. PCls(g)+Cl2(g) PCIS(g) D. PCI3(g)+O2(g) ClaPO(g) AH-285.7 AH 1225.6 kJ AH=-84.2 Calculate AH for the reaction: P4O10(s)+6 PCI5(g) 10 CI3PO(g). Note when I solved this problem, I used 3 of the 4 data reactions, added them together, then used the fourth data reaction to get to the desired reaction. -B-6C+10D+A