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dont worry about 8

produce magnesium burns in. A 2Mg(s).O2(g) -- 2MgO() moles of O2 are consumed when 1.90 mol of B) 1.05 C) 0.950 of magnesium burns How many moles of, are consumed. A) 1.90 D) 0.0782 NO decomposer accon en are formed when 58.6 g of KNO, de ass of KNO3 is 101.11 g/mol. 9) How many moles of oxygen are formed when Kollowing reaction? The molar mass of KNO3 is 101.11 4 KNO3(s) --2 K2O(s) +2 N2(8)+5O2(g) A) 0.580 mol O2 B) 1.73 mol O2 C) 0.724 mol O2 D) 0.290 mol O2 E) 18.5 mol O2 >> What is one A) graphs 5) treat C) that D) My E) W 16) Which A) 17) Con ofw 10) Choose the reaction that represents the combustion of C6H 20, A) Mg(s)+C6H12O2(1) -- MgC6H12O2(aq) B) CH2O2(1)+8O2(g) +6CO2()+6 H2O(g) C) C6H12O2(1) --6C(s) + 6H2(g)+O2(g) D) 6C(s) + 6 H2(g)+O2(6) --C6H12026) E) None of the above represent the combustion of C6H1202. 11) Balance the following equation BH6(g)+O2() -- B2O3(s) +H2O(g) What is the stoichiometric coefficient for oxygen? A) 3 B) 4 C) 6 D) 1 12) A 14.01 g sample of N, 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 D) 3.02 g E) 2 only 12) 10 13) Why are the halogens among the most active nonmetals? A) They all have smaller diameters than other nonmetals. B) Their valence electrons are more effectively shielded. C) Their d orbitals are completely filled Di The only need one electron needed to attain a nobel gas configuration E) All halogens have low electron affinities. E) 14.01 g 4) How many moles oficis will be producenti moles of P4 is reacted with an excess of Cl2 P4(s)+10 C12(6) -- 4 PC15(g) using the following equation A).662 mol B) 1.655 mol C).331 mol D) 1.324 mol E).993 mol 14)

Answer 1

kindly post different questions separately. please rate

4 KNU318) 2K2018) + 2N2 () + 50,19) molar mass of KNO3 = 101.11 gimol mass of KNO3 = 58.69 moles of KNOJ = mass = 0,5796 mol 58.69 101 molar man 4 moles of KNO3 produce 5 moles of O2 0.5796 moles of KNO3 produce mole of Oz 5 mol X0,5796 mol 4mol 0.724 moles of 02 Hence, option of is correct