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- Balance the following equation in standard form and determine the sum of the coefficients. LiAlH4(s) + AlCl3(s) --> AlH3(s) + LiCl(s) Group of answer choices 9 11 10 12 81. Balance the following equations:a) ____ Na2SO4(aq) + ____ Pb(C2H3O2)2(aq) → ____ NaC2H3O2(aq) + ____ PbSO4(s) i. How many moles of Pb(C2H3O2)2 are required to react with 1.67 moles Na2SO4? Use dimensional analysis.1. There is 0.25 mole of CO2 in a bottle of soda. How many grams of CO2 are in the bottle? 2. What coefficients (in order from left to right) are needed to balance the following chemical equation? ___C6H12O6(aq) → ___C2H6O(aq) + ___CO2(g) (In the answer choices below, a coefficient of 1 implies no coefficient in front of the formula.) Group of answer choices 1, 2, 2 1, 2, 3 2, 2, 3 1, 1, 1
- Please give both answer... 19) (a) Isolating iron metal in a metallurgical process has the chemical equation shown below: 3 CO (g) + Fe2O3 (s) -----> 2 Fe (s) + 3 CO2 (g) If 134 mg of carbon monoxide are reacted with 32.70 cg of iron(III) oxide solid, how many grams of Iron metal can be created? State which reactant is limiting and which is in excess (b) In a metallurgical practice run from part (a), 0.1257 g of Fe are collected. What is the % Yield?For the reaction CaCl2 + 2AgNO3 --> 2AgCl + Ca(NO3)2 , if AgNO3 is added in excess, what is the theoretical yield, in grams, of AgCl if you start with 18.7 g of CaCl2? Show your work1. Oxygen bleach acts in the release of oxygen which best works in hot water mixture. Which of the following bleach or its derivative could be a potential for oxygen bleaching? -OCl- NaOH NaOCl -O²- H2O2 2. In the production of ceramic, silicon carbide and silicon dioxide are being reacted at high temperature. In the process, carbon monoxide is also produced. After the reaction of 100.0 kg of silicon dioxide, 51.4 kg of SiC is obtained. Determine the percent yield of silicon carbide.
- 1. Balance the following chemical equation: Fe2O3 + CO ------> Fe + CO2, answers are listed in order - 1st coefficient, 2nd coeficient, etc. and so on. (1st one is in front of Fe2O3, 2nd one in front of CO, etc. and so on) Group of answer choices a) 1,3,3,2 b) 2,3,2,3 c) 1,3,2,3 d) 1,2,2,2You are given an unknown mixture containing NaCl and NaHCO3. When you carry out the heating exactly as described decomposing NaHCO3, only NaHCO3 decomposes. From the loss in mass, you can calculate the amount of NaHCO3 present in the mixture and its mass percent composition. Experimental data Unknown (NaCl + NaHCO3) Mass of crucible + cover 72.42 g Mass of crucible + cover + mixture 74.80 g Mass of crucible + cover + residue (1st heating) 74.25 g Mass of crucible + cover + residue (2nd heating) 74.24 g Mass of crucible + cover + residue (3rd heating) 74.24 From the data above, carry out your calculation for finding the mass of mixture, and mass of final solid remaining in the crucible. Using the knowledge that only loss of mass due to CO2 and H2O can be linked to the original mass of NaHCO3, calculate the mass of NaHCO3 and percent of NaHCO3 in the mixture.A sample of an industrial waste water is analyzed and found to contain 16.5ppb Fe2+. How many grams of iron could be recovered from 1.81×103 kg of this waste water? Answer:_______ grams Fe
- what is the coefficient in front of the O2 when the equation is balanced (using only whole numbers abs the lowest whole number ratio) C2H6O(g)+O2(g)>CO2(g)+H2O(g)Given the following balanced reaction, Fe2O3+3C-->2Fe+3CO if 1140 of fe2o3 were reacted with ecess c, what would be the percent yield for the reaction if 455g of CO were actually collected? density fe2o3=5.24g/cm3, density of co is 1.14kg/m33. Balance the following equation: Pb(NO3)2 + AlCl3 ----------> PbCl2 + Al(NO3)3 answers are listed in order - 1st coefficient, 2nd coeficient, etc. and so on. Group of answer choices a) 2,3,2,3 b) 3,2,2,3 c) 3,2,3,2 d) 2,3,3,2