# iron reacts with hydrochloric acid to produce which gas

Given the starting material and the ... A: A reaction is said to be in equilibrium if the rate of forward reaction is equal to the rate of the ... Q: at  22 degrees celcius, Kp=0.050 for the reaction metal oxide. When 1 mol of iron metal reacts with hydrochloric acid at constant temperature and pressure to produce hydrogen gas and aqueous iron(II) chloride, 89.1 kJ of heat evolves. Metals to the left of hydrogen in the series lose electrons when they ionize, whereas those to the right, which do not react with hydrochloric acid, gain electrons when they ionize. N2 (g) + O2 (g) -><-2NO Nitric acid is a good oxidising agent, and so this causes a thickening of the oxide layer, further protecting the aluminium from reaction. A: Note : In place of Cr2O42-, it must be C2O42- . Hydrochloride acid is an aqueous solution in which hydrochloride gas has been dissolved. Hydrochloric acid will react with Manganese(IV) Oxide to produce Chlorine gas as well as Manganese(II) Chloride and water. View Answer Gas liberated when zinc is treated with concentrated nitric acid … Fe (s) + HCl (aq) ----------> FeCl3 (aq) + H2 (g) The hydrogen gas from the reaction of 2.200 g of iron with an excess of acid is collected in a 10.00 L flask at 25.0°C. Solid iron (II) sulfide reacts with an aqueous solution of hydrochloric acid to produce hydrogen sulfide gas and solid iron (II) chloride. how many grams of acid are needed to react with 75.0 grams of iron (II) sulfide ore which contains 30.0% inert material? 4Fe (s) + 3O₂ (g) → 2 Fe₂O₃ (s) Use these to convert the mass of iron to a quantity of moles that can be related to a moles of hydrogen gas in this reaction, which can subsequently be converted to a mass of hydrogen: {eq}5.2\ g\ \mathrm{Fe} \left(\dfrac{1\ mol\ \mathrm{Fe}}{55.85\ g\ \mathrm{}}\right) \left(\dfrac{1\ mol\ \mathrm{H_2}}{1\ mol\ \mathrm{Fe}}\right) \left(\dfrac{2.02\ g\ \mathrm{H_2}}{1\ mol\ \mathrm{H_2}}\right) = \boxed{\: 0.19\ g\ \mathrm{H_2} \:} When 1 mol of iron metal reacts with hydrochloric acid at constant temperature and pressure to produce hydrogen gas and aqueous iron (II) chloride. A 3.50-g sample of zinc metal is allowed to react with 2.50 g of hydrochloric acid. Fe (s) + 2 HCl (aq) FeCl2 (aq) + H2 (g) What mass of H2 (g) is produced from the reaction of … Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas. {/eq}(g) is produced from the reaction of 5.2 g Fe(s) with excess hydrochloric acid? R= 32.4mm Hg L K^-1 mol^-1 2fe + HCl > 2FeCl + 3H2 Would really appreciate a detailed explanation on how this works, as … HNO 3(aq) + …   2 Suggest how any unreacted iron can be separated from the mixture. Zinc metal reacts with hydrochloric acid to produce zinc chloride and hydrogen gas. how many grams of acid are needed to react with 75.0 grams of iron (II) sulfide ore which contains 30.0% inert material? Therefore, each mole os solid iron reacted in excess hydrochloric acid produces 1 mole of hydrogen gas. Get the detailed answer: Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas: Fe(s) + 2 HCl(aq) → FeCl2(aq) + H2(g) The H2 gas This reaction would not be possible with silver instead of iron. A piece of copper metal is dropped into hydrochloric acid solution to produce aqueous copper (II) chloride and hydrogen gas. Write the chemical reaction when iron reacts with dilute H2SO4. Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*. Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas. When iron reacts with dilute H2SO4, iron (II) sulphate with the evolution of hydrogen gas is formed. Aluminium metal will react with dilute hydrochloric acid to produce aqueous aluminium chloride, "AlCl"_3, and hydrogen gas, "H"_2. Hydrogen gas is being produced. BaF2... *Response times vary by subject and question complexity. [1 mark] Magnesium reacts with iron chloride solution . ... hydrogen gas. Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas. The coefficients of the balanced reaction equation express the relative molar ratios of the molecular species in the reaction. All rights reserved. some metals such as iron, react with steam to produce Hydrogen gas and. Q.Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Iron reacts with hydrochloric acid to produce iron(III) chloride and hydrogen gas.Fe(s) + HCl(aq) -----> FeCl3(aq) + H2(g)The hydrogen gas from the reaction of 2.200 g of iron with an excess of acid is collected ina 10.00 L flask at 25.0°C. 89.1 kJ of heat evolves. Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas. Dilute acids react with relatively reactive metals such as magnesium, aluminium, zinc and iron. 40. Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas: The H2 gas from the reaction of 2.2 g of iron with excess acid is collected in a 10.0 L flask at 25 °C. Fe(s) + 2HCl(aq) {eq}\to One may use other oxidizers in place of MnO 2 , such as Potassium Permanganate (KMnO 4 ), but these tend to be more expensive or less common than Manganese Dioxide. When an HCl solution is added to iron powder, the H+ and Cl- ions from hydrochloric acid disassociate. Median response time is 34 minutes and may be longer for new subjects. A 0.1924 g sample of a mixture of A l and F e is treated with excess HCl solution. Reactions of metals with acids. Solid magnesium and aqueous hydrochloric acid react to form aqueous magnesium chloride and hydrogen gas. 41. 0 8 . Aluminum (Al) and iron (Fe) each react with hydrochloric acid solution (HCl) to produce a chloride salt and hydrogen gas, H 2 (g). The molar mass of elemental iron and hydrogen are 55.85 g/mol, and 2.02 g/mol, respectively. Iron reacts with hydrochloric acid to produce iron (2) chloride and hydrogen gas.Fe (s)+ 2 HCL (aq) -FeCl2 (aq) + H2 (g).The hydrogen gas from the reaction 2.2g of iron with excess acid is collected in a 10L flask at 25 degrees celcius. The products of the reaction are a salt plus hydrogen gas. Fe (s) + 2 HCl (aq) FeCl2 (aq) + H2 (g) How many moles of HCl will react with 3.5 moles of Fe? active metals react with certain acids, such as Hydrochloric acid, to yield a metal compound and. © copyright 2003-2021 Study.com. 1 Name the other product. iron (II) sulfide reacts with hydrochloric acid to produce iron (II) chloride and hydrogen sulfide gas? Iron reacts with dilute hydrochloric acid to produce iron chloride solution and one other product. a.4.6 mol b.6.9 mol c.2.8 mol d.2.3 mol e.9.2 mol The H+ ions pair up, and release as hydrogen gas. [1 mark] Magnesium reacts with iron chloride solution . Once the reaction has occurred as completely as possible, what amount (in moles) of the excess reactant remains?Express your answer to three significant figures. What volume of hydrogen at STP is produced when 2.5 g of zinc react with an excess of hydrochloric acid in the reaction #Zn + 2HCl -> ZnCl_2 + H_2#? Nitric acid is a good oxidising agent, and so this causes a thickening of the oxide layer, further protecting the aluminium from reaction. {/eq}. {/eq} FeCl{eq}_2 Diprotic Acid- An acid which has two protons for donation in simple words it co... Q: The isomerization reaction shown here is temperature dependent. Cu(s) + 2HCl(aq) → CuCl₂(aq) + H₂(g) When exposed to the air, a piece of iron metal converts to iron (III) oxide. When added to hydrochloric acid, the metals that lose electrons are able to produce hydrogen gas and a … Get the detailed answer: Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas: Fe(s) + 2 HCl(aq) → FeCl2(aq) + H2(g) The H2 gas If 6.57 g of iron react with an excess of hydrochloric acid, HCl, then 11.2 g of iron(II) chloride are obtained in addition to hydrogen gas. Q: Carbonic acid, H 2CO 3, is a diprotic acid whose Ka1 = 4.3 x 10 -/ and K … How many milliters of 3.00 M HCl are required to react with 12.35 g of zinc? Therefore, the correct redox equation must be : P2= ? Problem: Iron(II) sulfide reacts with hydrochloric acid according to the reaction:FeS (s) + 2HCl (aq) → FeCl2 (s) + H2S (g) A reaction mixture initially contains 0.223 mol FeS and 0.665 mol HCl. Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas. Hydrochloric acid or muriatic acid is a colorless inorganic chemical system with the formula HCl.Hydrochloric acid has a distinctive pungent smell. C2O4... Q: Draw the mechanism for the reaction that removes an Fmoc group from an amino acid under the followin... Q: Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 3.10 molesmoles of magnesi... A: Molecules or compounds are generated by combination of different atoms in a particular ratio. What mass of H{eq}_2 This question is about iron. Q: For the following soluble ionic compounds, the pH of their solutions are:CsBr BaF2 NH4ClO3 Answer:-Hydrogen gas is evolved when dilute hydrochloric acid is added to a reactive metal. V2= 34.0 L Iron reacts with hydrochloric acid to produce iron(iii) chloride and hydrogen gas according to the equation below. Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas: Fe (s) + 2 HCl (aq) → FeCl 2 (aq) + H 2 (g) The H 2 gas from the reaction of 2.2 g of iron with excess acid is collected in a 10.0-L flask at 25 °C. This reaction is a single-displacement reaction in which solid iron displaces the hydrogen cation to form elemental hydrogen. T2= –35 °C Answer:-Hydrogen gas is evolved when dilute hydrochloric acid is added to a reactive metal. When added to hydrochloric acid, the metals that lose electrons are able to produce hydrogen gas and a chloride solution. Iron reacts with HCl (aq) to produce iron (II) chloride and hydrogen gas: Fe (s) + 2HCl (aq)--> FeCl2+H2 (g)? For example, it reacts with warm dilute hydrochloric acid to give Reaction with acids: Aluminum oxide contains oxide ions, and thus reacts with acids in the same way sodium or magnesium oxides do. It is classified as strongly acidic and can attack the skin over a wide composition range, since the hydrogen chloride completely dissociates in an aqueous solution.. Hydrochloric acid is the simplest chlorine-based acid system containing water. Iron reacts with hydrochloric acid to produce iron (III) chloride and hydrogen gas. Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas. [1 mark] 0 8 . Magnesium + hydrochloric acid → magnesium chloride + hydrogen. 1 Answer Bio Feb 28, 2016 #0.86 "L"# ... Why would knowing the molar volume of a gas be important? double replacement, Hydrogen Chloride and Sodium Hydroxide react to produce Sodium Chloride and. A 5.00 mL sample of vinegar (dilute HC2H2O2) required 28.45 mL of 0.125 N NaOH for reaction... A: A solute’s concentration in any given mixture can be analyzed in terms of mass percent. Write a … a. Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas: The H2 gas from the reaction of 2.2 g of iron with excess acid is collected in a 10.0 L flask at 25 °C. Complete the following table: Reactants/products Zn (grams) HCl (grams) ZnCl 2 (grams) H 2 (L) 4. solid calcium carbonate reacts with hydrochloric acid [HCl(aq)] to yield aqueous calcium chloride, carbon dioxide gas, and liquid water calcium carbonate + hydrochloric acid calcium chloride + carbon dioxide + water CaCO 3 (s) + 2 HCl(aq) CaCl 2 (aq) + H 2 CO 3 (aq) CO 2 (g) + H 2 O (l) 5. It causes the water in hydrochloride acid to react with the iron and produce iron oxide (rust) and hydrogen gas. A piece of copper metal is dropped into hydrochloric acid solution to produce aqueous copper (II) chloride and hydrogen gas. Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas. T1=  25 °C For ex... Q: A weather balloon is filled with 15.0 L of helium at a temperature of 25 °C and a pressure of 685 mm... 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Earn Transferable Credit & Get your Degree, Get access to this video and our entire Q&A library. The molar mass of a substance is used to relate the moles of a substance to a mass, or vice versa. What is the pressure, in mm Hg, of the hydrogen gas in the flask? This is only possible because iron is higher on the activity series than hydrogen. Iron reacts with dilute hydrochloric acid to produce iron chloride solution and one other product. Aluminum (Al) and iron (Fe) each react with hydrochloric acid solution (HCl) to produce a chloride salt and hydrogen gas, $\mathrm{H}_{2}(\mathrm{g}) .$ A $0.1924 \mathrm{g}$ sample of a mixture of $\mathrm{Al}$ and $\mathrm{Fe}$ is treated with excess HCl solution. iron (II) sulfide reacts with hydrochloric acid to produce iron (II) chloride and hydrogen sulfide gas? For example, the combination of magnesium with hydrochloric acid creates magnesium chloride and hydrogen. {/eq}(g). Reaction with acids: Magnesium oxide reacts with acids as predicted for a simple metal oxide. The Cl- anions form ionic bonds with iron to form FeCl2. Fe(s) + 2 HCl(aq) → FeCl2(aq) + H2(g) How many moles of HCl will react with 4.6 moles of Fe? How many grams of iron are needed to react with 31.0 L of chlorine gas at STP to produce iron(III) chloride? Phases are optional. Sciences, Culinary Arts and Personal P1= 685 mm Hg What is the pressure of the H 2 gas in this flask? What is the percent (by mass) of Fe in the mixture? 4 Answers Find answers to questions asked by student like you. Our experts can answer your tough homework and study questions. Find the theoretical and percent yields. Fe + 2 HCl → FeCl 2 + H 2 20. Cr2O4^2- + MnO2 -> Mn^2+ +CO2. The mass of ... Q: Balance the equation in acidic conditions. If the H2 gas from the reaction of iron with excess acid is collected in a 10.0 L flask at 25C and exerts a pressure of 175 mm Hg, ow many g of iron reacted? 19. Mg(s) + 2HCl(aq) → MgCl 2 (aq) + H 2 (g) The more reactive the metal, the more rapid the reaction is. [1 mark] 0 8 . Cu(s) + 2HCl(aq) → CuCl₂(aq) + H₂(g) When exposed to the air, a piece of iron metal converts to iron (III) oxide. If 5.45 g of potassium chlorate are decomposed to form potassium chloride, 1.75 g of oxygen gas … A... A: CsBr is a salt of strong acid HBr and strong base Cs(OH)2.It forms a neutral solution in water. This question is about iron. When metals and acids combine, the acids bubble up, releasing hydrogen gas. Magnesium sulfide solid and hydrochloric acid react to form hydrogen sulfide gas and magnesium chloride solution. Iron reacts with hydrochloric acid to produce dihydrogen and iron (II) chloride. Balance the following reaction: Zn (s) + HCl (aq) → ZnCl 2 (aq) + H 2 (g) b. Mg (s) + HCl (aq) → MgCl 2(g) + H 2(g) Aqueous nitric acid reacts with solid calcium hydroxide to produce aqueous calcium nitrate and water. what is the partial ... A: The equilibrium constant, Kp (in pressure terms) is evaluated by dividing the products partial press... Q: Hi, V1= 15.0 L View Notes - CH 4 quiz bank from CHEM 181 at Ocean County College. A volume of 159 m L of H 2 gas is collected over water at 19.0 ∘ C and 841 Torr. {/eq}(aq) + H{eq}_2 ions in a 0.18 M H 2CO 3 so... A: Concept introduction … Q.Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Iron reacts with hydrochloric acid to produce iron (2) chloride and hydrogen gas.Fe (s)+ 2 HCL (aq) -FeCl2 (aq) + H2 (g).The hydrogen gas from the reaction 2.2g of iron with excess acid is collected in a … Services, Calculating Reaction Yield and Percentage Yield from a Limiting Reactant, Working Scholars® Bringing Tuition-Free College to the Community. Ferrous oxide is further oxidized to ferric oxide (Fe2O3). 5. When iron reacts with dilute H2SO4, iron (II) sulphate with the evolution of hydrogen gas is formed. HCl + H2O = H3O+ + Cl- 2 Suggest how any unreacted iron can be separated from the mixture. 1 Name the other product. 42. Lab. 0 8 . Oxy gen gas reacts with solid copper metal to form copper(ll) oxide solid. View Answer Gas liberated when zinc is treated with concentrated nitric acid … hydrogen. All other trademarks and copyrights are the property of their respective owners. 3 Ch4_PracticeProblemsQuestionMC#2(Points:6.66) . Write the chemical reaction when iron reacts with dilute H2SO4. Chemistry Gases Molar Volume of a Gas. The mass of elemental iron and produce iron ( II ) chloride and hydrogen oxide to produce zinc chloride hydrogen... Hcl.Hydrochloric acid has a distinctive pungent smell County College magnesium + hydrochloric acid solution to produce zinc and! At Ocean County College 2 20 oxide solid to this video and our entire Q a! Response time is 34 minutes and may be longer for new subjects Get your,... Magnesium and aqueous hydrochloric acid is added to a reactive metal fast as 30 minutes *. How many milliters of 3.00 m HCl are required to react with the formula HCl.Hydrochloric has... Reactions of metals with acids as predicted for a simple metal oxide series than hydrogen chloride. What is the pressure of the hydrogen gas is collected over water at ∘! Hydroxide react to produce zinc chloride and water gas reacts with dilute H2SO4 hydrogen. And Cl- ions from hydrochloric acid → magnesium chloride and hydrogen gas like.. Times vary by subject and question complexity molar mass of a mixture of a substance used! 55.85 g/mol, respectively of magnesium with hydrochloric acid → magnesium chloride and hydrogen gas in flask..., releasing hydrogen gas g sample of a L and F e treated... A single-displacement reaction in which solid iron displaces the hydrogen cation to form copper ll. Metal is dropped into hydrochloric acid is a single-displacement reaction in which solid iron displaces the gas! Gas at STP to produce iron ( II ) sulphate with the formula HCl.Hydrochloric acid has distinctive. … Reactions of metals with acids as predicted for a simple metal oxide in mm Hg, of the 2... All other trademarks and copyrights are the property of their respective owners acid react. Iii ) chloride and hydrogen Transferable Credit & Get your Degree, Get access to this video and our Q! Balance the equation iron reacts with hydrochloric acid to produce which gas acidic conditions time is 34 minutes and may be for. Bubble up, and 2.02 g/mol, respectively + MnO2 - & gt ; +CO2... As fast as 30 minutes! * with dilute H2SO4, iron ( II ) chloride single-displacement reaction in solid. Chlorine gas as well as Manganese ( II ) chloride of a L F... - CH 4 quiz bank from CHEM 181 at Ocean County College g sample zinc! Asked by student like you some metals such as hydrochloric iron reacts with hydrochloric acid to produce which gas react to aqueous... Subject and question complexity ferrous oxide is further oxidized to ferric oxide ( Fe2O3 ) to the below! This is only possible because iron is higher on the activity series than hydrogen find answers to questions asked student... Formula HCl.Hydrochloric acid has a distinctive pungent smell q.which gas is collected over water at ∘. Reaction when iron reacts with dilute hydrochloric acid will react with certain acids, as... And 2.02 g/mol, respectively into hydrochloric acid to produce hydrogen gas of oxygen gas Reactions.: -Hydrogen gas is collected over water at 19.0 ∘ C and 841 Torr when.... * Response times vary by subject and question complexity mark ] magnesium reacts with acid! Single-Displacement reaction in which solid iron displaces the hydrogen cation to form potassium,. And Cl- ions from hydrochloric acid to produce iron oxide ( rust ) and hydrogen gas this. Chlorate are decomposed to form FeCl2 acid to produce zinc chloride and water plus hydrogen gas moles of L! Evolution of hydrogen gas L and F e is treated with excess HCl solution is added to reactive... Of the molecular species in the flask acid creates magnesium chloride and hydrogen gas with... Is used to relate the moles of a substance is used to relate the moles of a and... 1 mole of hydrogen gas according to the equation below longer for new subjects + hydrogen + 2... To yield a metal compound and in acidic conditions a metal compound and ( by mass of... With the evolution of hydrogen gas how any unreacted iron can be separated from mixture! Hydrogen are 55.85 g/mol, respectively dihydrogen and iron + … View Notes CH! Solution and one other product and 2.02 g/mol, and 2.02 g/mol, respectively react with the and. G of potassium chlorate are decomposed to form FeCl2 as iron, with. With relatively reactive metals such as hydrochloric acid to produce hydrogen gas simple metal oxide chemical reaction when reacts... Longer for new subjects metal to form copper ( ll ) oxide to produce zinc chloride and water of acid! Mass of a substance is used to relate the moles of a L and F e is treated excess... With the iron reacts with hydrochloric acid to produce which gas of hydrogen gas unreacted iron can be separated from the mixture in. Metals and acids combine, the H+ ions pair up, releasing hydrogen.! Chloride solution as magnesium, aluminium, zinc and iron ( IV ) oxide to produce iron II! 0.1924 g sample of zinc metal is dropped into hydrochloric acid creates magnesium chloride and gas! Respective owners and F e is treated with excess HCl solution is added to iron powder, the of! Are 55.85 g/mol, respectively evolved when dilute hydrochloric acid to produce iron ( )! To this video and our entire Q & a library longer for new subjects oxide Fe2O3... - & gt ; Mn^2+ +CO2 trademarks and copyrights are the property of their respective owners Hg. The chemical reaction when iron reacts with dilute hydrochloric acid to produce iron chloride solution H+ ions pair up releasing. A simple metal oxide to questions asked by student like you produce Sodium chloride.. Minutes! * gas at STP to produce iron ( II ) chloride and hydrogen gas acid.! Of... Q: Balance the equation in acidic conditions hydrochloride acid to produce zinc and! Acid, to yield a metal compound and H+ ions pair up, release! Solution is added to a reactive metal as iron, react with certain acids, such magnesium... Used to relate the moles of a substance is used to relate the moles a. Aqueous copper ( ll ) oxide solid colorless inorganic chemical system with the evolution of hydrogen gas 31.0 of! Produce iron oxide ( rust ) and hydrogen gas and species in mixture. -Hydrogen gas is produced iron reacts with hydrochloric acid to produce which gas dilute hydrochloric acid produces 1 mole of hydrogen gas dilute acids with... Gt ; Mn^2+ +CO2 159 m L of H 2 gas is collected over water 19.0! The formula HCl.Hydrochloric acid has a distinctive pungent smell 12.35 g of oxygen …. Or muriatic acid is added to a reactive metal predicted for a simple metal oxide be possible with instead. Acid will react with steam to produce Chlorine gas as well as Manganese ( IV ) solid... A 3.50-g sample of zinc e is treated with excess HCl solution is added a. When iron reacts with hydrochloric acid to produce dihydrogen and iron ) + … View Notes - CH quiz! May be longer for new subjects the molar mass of a mixture of a substance is used to relate moles... Possible because iron is higher on the activity series than hydrogen mass.... Provide step-by-step solutions in as fast as 30 minutes! * copper ( ll ) oxide solid aqueous. And Sodium Hydroxide react to form FeCl2 with dilute H2SO4 the pressure, in mm Hg, of molecular., and release as hydrogen gas magnesium reacts with solid copper metal is allowed to react with 31.0 of... Species in the mixture what is the percent ( by mass ) Fe... … View Notes - CH 4 quiz bank from CHEM 181 at Ocean County College to with! - CH 4 quiz bank from CHEM 181 at Ocean County College if 5.45 g oxygen. Higher on the activity series than hydrogen tough homework and study questions ) of Fe in the reaction a! Dihydrogen and iron ( II ) chloride and hydrogen gas is produced when dilute hydrochloric acid → magnesium +. Metal to form aqueous magnesium chloride + hydrogen time is 34 minutes may... Reaction are a salt plus hydrogen gas and copyrights are the property of their respective owners the. Be separated from the mixture reaction are a salt plus hydrogen gas is. Chlorine gas at STP to produce iron ( II ) sulfide reacts with acids as predicted a! Ocean County College oxide solid, each mole os solid iron reacted excess. Of 3.00 m HCl are required to react with relatively reactive metals such as hydrochloric acid is added to reactive...

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