Fe s + o2 g → fe3o4 s
Web解析铁与高温水蒸气反应生成四氧化三铁和氢气,不能实现上述转化①,故A错误;FeO是一种黑色粉末,不稳定,在空气中受热,部分被氧化生成Fe3O4,不能发生转化②,故B错误;加热Fe(OH)3发生转化⑥分解生成氧化铁,氢氧化铁不溶于水,加水溶解不可实现转化 ... WebJan 9, 2024 · - Tác dụng với O2 : Sắt cháy sáng trong không khí: 3Fe + 2O2 = Fe3O4 - Fe tác dụng với phi kim khác 2Fe + 3Cl2 2FeCl3 Fe + S FeS b.Tác dụng với axit. 0 +2 * Với axit HCl, H2SO4 loãng: Fe bị oxi hóa lên Fe Fe + 2HCl FeCl2 + H2 Fe + H2SO4 FeSO4 + H2 * Với HNO3,H2SO4 đặc: - HNO3 và H2SO4 đặc nguội làm cho ...
Fe s + o2 g → fe3o4 s
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WebApr 13, 2024 · First Part is Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) ΔH is = −23 kJ. Second Part is 3 Fe2O3(s) + CO(g) → 2 Fe3O4(s) + CO2(g) ΔH is = −39 kJ. Third Part … WebApr 14, 2024 · Chúng tôi xin giới thiệu phương trình Fe3O4 + HNO3 → Fe(NO3)3 + NO2 + H2O gồm điều kiện phản ứng, cách thực hiện, hiện tượng phản ứng và một số bài tập liên
WebFe + NaBr → FeBr3 + Na5. Al + O2 → Al2O3 ... Fe3O4 + H2 → Fe + H2O 4. NH3 → N2 + H2 5. Cu + AgNO3 → Cu(NO3)2 + Ag 6. SrBr2 + (NH4)2CO3 → SrCO3 + NH4Br 7. C + O2 → CO2 8. CaCO3 → CaO + CO2. Answer: Explanation: a.) 1. Combination. 2. Single Replacement. 3. Single Replacement. 4. Decomposition ... WebApr 7, 2024 · 3Fe (s) + 2 O2 (g) = Fe3O4 (s) If 3 moles of Fe reacts with 2 mole of O2. 0.22 moles of Fe reacts with 0.22 moles * 2 mole/3 moles = 0.15 moles. Hence, Fe is the …
WebFe(s)+H 2O(g)→Fe 3O 4(s)+H 2(g) Medium Solution Verified by Toppr Balanaced chemical equation is: 3Fe(s)+4H 2O(g)→Fe 3O 4(s)+4H 2(g) Was this answer helpful? 0 0 Similar … Web答案:AC 解析:反应中 3Fe2+→Fe3O4,当 3 mol Fe2+参加反应时,有 2 mol Fe2+化合价升高,反应中 Fe 和 S 元素的化合 价升高,Fe2+、S2O 23-被氧化,作还原剂,O2 为氧化剂,参加反应的氧化剂与还原剂的物质的量之比为 1∶(2+ 2)=1∶4,A 项错误、D 项正 …
WebYou are given the following thermodynamic data. 2 Fe (s) + 3/2 O2 (g) → Fe2O3 (s) ΔH° = -823 kJ 3 Fe (s) + 2 O2 (g) → Fe3O4 (s) ΔH° = -1120. kJ Calculate the ΔH° for the …
WebExercise 5.7. 3. Determine the standard enthalpy of formation of Fe 2 O 3 (s) given the thermochemical equations below. Fe (s) + 3 H 2 O (l) → Fe (OH) 3 (s) + 3/2 H 2 (g) Δ rH … griselda blanco movie on netflixWebFe3O4 + H2 → Fe + H2O 4. NH3 → N2 + H2 5. Cu + AgNO3 → Cu(NO3)2 + Ag 6. SrBr2 + (NH4)2CO3 → SrCO3 + NH4Br 7. C + O2 → CO2 8. CaCO3 → CaO + CO2; 20. … fighting practiceWebA: Fe2O3(s) + 2 Al(s) → 2 Fe(s) + Al2O3(s) Here 1 mol of Fe2O3 reacts with 2 mols of Al to form 2 mols… Q: According to the following thermochemical equation what mass of HF … griselda blanco motorcycle drive byWebApr 8, 2024 · To figure out the number of moles of Fe and CO 2 formed use the ratios from the balanced reaction. We figured out that for every mole of Fe 2 O 3 there are 2 moles … fighting prawn peter and the starcatcherWebDetermine H for → 2Fe3O4 (s) + CO2 (g) → 3Fe2O3 (s) + CO (g) Rxn a Fe2O3 (s) + 3CO(g)→ 2Fe(s) + 3CO2 (g) Hrxn = -40.2 kJ Rxn b Fe3O4 (s) + CO(g)→ 3FeO(s) + … fighting prettyWeb(7.7) How many moles of Fe are needed for the reaction of 12.0 moles of O2? 4Fe (s) + 3O2 (g) → 2Fe2O3 (s) 1. 3.00 moles of Fe 2. 9.00 moles of Fe 3. 16.0 moles of Fe 3 (7.7) … griselda blanco on netflixWebFe + NaBr → FeBr3 + Na5. Al + O2 → Al2O3 ... Fe3O4 + H2 → Fe + H2O 4. NH3 → N2 + H2 5. Cu + AgNO3 → Cu(NO3)2 + Ag 6. SrBr2 + (NH4)2CO3 → SrCO3 + NH4Br 7. C + … griselda flores\u0027 death