Q4. In underground coal combustion in the gas phase several reactions ta place including: Co + ½02 → CO2 H2 + ½02 → H20 CH, + 202 → CO2 + 2H20 If a gas phase composed of the following molar composition: CO2: 15.22%; C 13.54%; H2: 15.01%; CHa: 3.2%; and the balance N2, the gas is burned with 40 excess air. On the basis of 100 mol of aas calculate the amount of gir need

Balance the following equation. What is the sum of the coefficients in the balanced equation? KCIO;(s) + P(s) - P,O10(s)+ KCI(s)

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What are coefficients that balance the reaction equation for the combustion of C19H40 + O2 -> CO2 + H2O

A tiny sample of an aqueous solution of two substances R and P is sketched below, as if it was under an imaginary microscope so powerful that individual molecules could be seen. (The water molecules are not shown.) 8 R and P can interconvert. That is, R can turn into P, and P can turn back into R: 113 5 R (aq)=P(aq) R P number of R molecules: number of P molecules: K= The equilibrium constant K for this equilibrium is interconversion reaches equilibrium. $3/1₁ Predict the number of R and P molecules in this sample when the . X

Balance the chemicalequation _mg(s) + _O2(g) ---> _MgO (s) identify the type of reaction    _Fe (s)+ _CuSo4 aq--->_FeSO4 (aq) + _Cu (s)  identify the type of reaction

1. Chlorine has two isotopes, 35Cl and 37Cl. Which isotope has a higher natural abundance? Show your calculations. U 2. Extraction of aluminum from Bauxite ore starts with the following reaction: a Al₂O3 + b NaOH → c NaAlO₂ + d H₂O (a) Balance the equation, i.e., specify the values of a. b. c, and d. (b) Assuming a theoretical reaction yield, at what mass will Al₂O3 no longer be a limiting reagent in a process that also uses 40 ko of sodium hydroxide?

Ammonia (NH3) is an important compountd is used in large amounts for the manufacture of nitrogenous fertilizers, nylon and many other important compounds. It is manufactured by the catalytic reaction between nitrogen between nitrogen and hydrogen, according to the following equation; N2(g) +H2(g) = NH;(g) When 1.20 mol nitrogen and 1.20 mol hydrogen are mixed together in a closed vessel, 30% of the nitrogen is converted into ammonia. a. Calculate the moles of nitrogen gas that will be present in the vessel? (only 3 decimal places) mol b. Calculate the moles of hydrogen gas that will be present in the vessel? (only 3 decimal places) mol c. Calculate the moles of ammonia gas that will be present in the vessel? (only 3 decimal places) Activate W mol d. What is the number of moles of nitrogen gas that has reacted? (only 3 decimal places) 10:09 Links 18°C 1O 23-Nov-21

Balance the given reaction for step 5 (use 1 for single species - even though it is not needed, please) and state the physical state of the compounds: ) + Na2SO4( ---> BaCl2( ) + BaSO4( NaCl(

All one question