5. Which element is reduced in the following reaction: 2Mg + O2 → 2M9O if Mg goes from 0 to +2 and O goes from 0 to -2? O Mg and O Neither element O Mg
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- 18.2 Balance the following chemical equation for the stoichiometric combustion of methane with oxygen. ____ CH4(g) + ______O2(g) ⟶ ______ CO2(g)+ ______H2O(g) What are the coefficients for O2(g) and CO2 (g)?For the following reaction: 5Ca + V2O5 --> 5CaO + 2V In one process 5 moñ of V2O5 react with 3 mol of acá. Calculate the theoretical yield of V in the unit of mol.How much heat (in kilojoules) is evolved or absorbed in the reaction of 1.65 gg of NaNa with H2OH2O?2Na(s)+2H2O(l)→2NaOH(aq)+H2(g) ΔH∘2Na(�)+2H2O(�)→2NaOH(��)+H2(�) Δ�∘ = -368.4kJkJ.
- Background-info: https://drive.google.com/file/d/1G7sPTuESIgWk9wpRdqAnFcsBmOlbBfLv/view?usp=sharing Question: A student measured qnxn for the reaction of 0.398 g of a metal, Xa(molar mass = 97.42), with HClag to be -902 J. Assuming this metal reacts in the same manner as magnesium, what is the AH°; (in kJ/mol) for this metal's cation in solution, i.e., X2* (og? Report your answer to the correct number of significant figures and only include the numerical answer (no units).Give only typing answer with explanation and conclusion to all parts CH4 + 2O2 ------- CO2 + 2H2O + 890.1 kj What is theoretical yield of CO2 in moles using 1.5 moles of O2? What is theoretical yield of H2O in grams using 1.5 moles of CH4? How much heat is released by burning 120 g of O2?When the reaction shown below is performed using: A + B --> C + D The temperature changes from 25.0 degrees Celsius at the start to 19.0 degrees Celsius at the end of the reaction. a. Is the reaction endothermic or exothermic? b. What is the value of q for the reaction if the mass of the reaction was 54.4 grams ?
- Balance the reaction for the combustion of pentane: ?C5H12+?O2→?CO2+?H2O?C5H12+?O2→?CO2+?H2O Enter the four coefficients in order, separated by commas (e.g., 1,2,3,4), where 1 indicates the absence of a coefficient.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) 1,2,2,2Stoichiometric calculations. Show computations K, a pharmaceutical scientist aims to synthesize paracetamol by reacting 3.075 mg of p-aminophenol and 2.25 milliliters of acetic anhydride to produce paracetamol and acetic acid. C6H7NO + C4H6O3 à C8H9NO2 What is the limiting reactant? How many grams of paracetamol was formed? K was able to produce 1.88 grams of paracetamol. What is the percentage yield?
- Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars every day. Although the actual process also requires water, a simplified equation (with rust shown as Fe2O3) is:4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) ΔHrxn = −1.65 × 103 kJ (a) What is the ΔHrxn when 0.250 kg of iron rusts?Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars every day. Although the actual process also requires water, a simplified equation (with rust shown as Fe2O3) is: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) Δ Hrxn = −1.65 × 103 kJ (a) What is the ΔHrxn when 0.250 kg of iron rusts?The enthalpy change of neutralization is -55.8 kJ/mol for a strong base strong acid reaction generating water. If you have 0.5 mol of H2SO4 and 0.5 mol of NaOH, what is the balanced chemical reaction, and calculate the limiting reagent for the reaction?