Cop­per is an el­e­ment that be­longs to the group of met­als and holds 29th place on Mendeleev’s pe­ri­od­ic ta­ble. Solid iron(III) oxide reacts with hydrogen gas to form solid iron and liquid water. If ice is less dense than liquid water, shouldn’t it behave as a gas? b. Al(s) + 3CuSO4(aq) ———→ Al2(SO4)3(aq) + 3Cu(s). In this reaction, copper is oxidized while nitric acid is reduced to nitric oxide. Do not heat too strongly, nor allow the white colour to darken, as the copper sulfate may decompose to produce toxic sulfur oxides. CuSO4.5H2O(s) (pale blue solid)  ⇌ CuSO4(s) (“dirty” white solid) + 5H2O(l). Get your answers by asking now. The solution gradually acquires the blue color characteristic of the hydrated Cu 2+ ion, while the copper becomes coated with glittering silver crystals. The combination reaction between copper and oxygen with word and balanced symbol equations. The white anhydrous copper(II) sulfate is then rehydrated and the blue colour returns. This matches what happens in the reaction. Act quickly to prevent suck-back if the level of water collecting in the test-tube reaches the end of the delivery tube. (1) (d) Use the appropriate half-equation from the table to explain in terms of oxidation states what happens to Consider chemical reactions in terms of energy, using the terms exothermic, endothermic and activation energy, and use simple energy profile diagrams to illustrate energy changes. The physics of restoration and conservation. We have one (1) copper atom on … This is a single displacement reaction in which copper has been displaced by iron from copper sulphate solution and a new compound, ferrous sulphate, is formed. Nitric Acid a blue colour liquid substance will form that is Copper Nitrate and a reddish-brown Gas will extracted out that is Nitrogen Dioxide and water will also occur Copper Nitrate plus water makes the following equation, For the best answers, search on this site https://shorturl.im/aw2Qm, Oxygen dissolves in water, but it shouldn't actually react with it. Heat the blue copper(II) sulfate until it has turned white. Write a balanced chemical equation for each reaction. The more observant should notice that the addition of water to anhydrous copper(II) sulfate is exothermic, as the tube becomes noticeably hot if the water is added very slowly. Perform what looks like alchemy with ordinary copper coins in this teacher demonstration. The reaction may be described by the net ionic Equation Copper corrosion is expected to follow the same process as the above with iron. Explain what this reaction means in terms of chemical reactions at the molecular level. Write the balanced chemical equation for the reaction. Condensing the vapour produced in a second test tube collects the water. Copper Nitrate plus water makes the following equation, Cu (NO3)2 + 6H2O -----> Cu (H2O) + 2NO3 hope it helped ! Demonstration of an exothermic and endothermic reaction. In this experiment the water of crystallisation is removed from hydrated blue copper(II) sulfate. This half-reaction says that we have solid copper (with no charge) being oxidized (losing electrons) to form a copper ion with a plus 2 charge. Demonstrate how to lift the entire clamp stand and apparatus. Le Chatelier’s principle is used to predict a colour change. Here is the balanced symbol equation: 2Cu + O2 → 2CuO. Lithium: separation, mining and battery power, 6 tips for teaching reaction rates using graphs, The equilibrium between two coloured cobalt species, Turning copper coins into ‘silver’ and ‘gold’, Using indigestion tablets to neutralise an acid, Copper(II) sulfate(VI)–5–water (powdered), (HARMFUL, DANGEROUS FOR THE ENVIRONMENT), about 5 g. Set up the apparatus as shown (but without water in the receiving tube – this is to be collected during the experiment), placing about 5 g of powdered hydrated copper(II) sulfate in the test tube. Al(s) + 3CuSO4(aq) ———→ Al2(SO4)3(aq) + 3Cu(s). Chemical reactions can result in a change in temperature. Heated copper metal reacts with oxygen to form the black copper oxide. It ensures the chemical equation obeys the law of conservation of mass. A simple redox reaction occurs when copper metal is immersed in a solution of silver nitrate. Write a balanced chemical equation for the reaction of iron filings with copper sulfate solution. Why they are they, and they don,t even learn? The reaction between copper metal and the halogens fluorine, F 2, chlorine, Cl 2, or bromine, Br 2, affords the corresponding dihalides copper(II) fluoride, CuF 2, copper(II) chloride, CuCl 2, or copper(II) bromide, CuBr 2 respectively. Reaction involved: Fe (s) + CuSO 4 (aq) → FeSO 4 (aq) + Cu (s) 4. Solid copper reacts with solid sulfur to form solid copper(I) sulfide. This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. The same amount of energy is transferred in each case. The balanced equation for this reaction is: 2AgNO3 (aq) + CuCl2 (s) → 2AgCl(s) + Cu(NO3)2(aq) If 6 moles of silver nitrate react, (a) The reaction consumes _____ moles of copper… How do you calculate how much room temperature water (23.3°C) will be needed to drop the temperature of warm water from 50°C to 42°C. Ensure that the students have clamped the test-tube at the end nearest the bung before they start the experiment, otherwise they will be heating the clamp as well as the test tube. 3,Zinc salts cause a … The copper (I) iodide is virtually insoluble in water, and so the disproportionation reaction doesn't happen. b. It is … Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. The questions asks to write a word equation and a balanced chemical equation for a reaction between aqueous copper (ii) sulfate and solid iron. Problem: When silver nitrate reacts with copper(II) chloride, silver chloride and copper(II) nitrate are produced. The copper oxide can then react with the hydrogen gas to form the copper metal and water. 2 H2 + O2 --> H2O. You can sign in to vote the answer. Perhaps some additional information about your specific question would also be helpful. What observations can you make? Warn about, and watch for, suck-back. Methods of copper oxidation How it reacts with air. Still have questions? Recall that some reactions may be reversed by altering the reaction conditions. Perhaps in subsequent class discussion students could be asked why anhydrous copper(II) sulfate would not be a feasible fuel for the future. Join Yahoo Answers and get 100 points today. In this case; The balanced chemical equation for the reaction between copper and silver nitrate is; Cu (s) + 2AgNO₃ (aq) → Cu (NO₃) ₂ (aq) + 2Ag (s) It is an example of a single replacement reaction. Copper(I) sulfide is a copper sulfide, a chemical compound of copper and sulfur.It has the chemical compound Cu 2 S. It is found in nature as the mineral chalcocite.It has a narrow range of stoichiometry ranging from Cu 1.997 S to Cu 2.000 S. C6.3.1 recall that some reactions may be reversed by altering the reaction conditions including: reversible reactions are shown by the symbol ; reversible reactions (in closed systems) do not reach 100% yield, C5 Monitoring and controlling chemical reactions, C5.3a recall that some reactions may be reversed by altering the reaction conditions, C6.3.1 recall that some reactions may be reversed by altering the reaction conditions including: reversible reactions are shown by the symbol ⇌; reversible reactions (in closed systems) do not reach 100% yield, C5.2a recall that some reactions may be reversed by altering the reaction conditions. Solid copper reacts with solid sulfur to form solid copper(I) sulfide. The ion does form a protective, water insoluble zinc hydroxide (Zn (OH)2 ) layer with dissolved hydroxide ions,the reaction is Zn2+ 2OH- ————→ (Zn (OH)2 ) .This reaction releases hydrogen, which reacts with oxygen explosively. CuO (s) + 2 H 3 O + (aq) + 3 H 2 O (l) --> [Cu (H 2 O) 6] 2+ (aq) Equation (3), (4) and (5) give a description that the presence of dissolved oxygen and carbon dioxide in water adhering to metal surfaces is a prerequisite for the corrosion process oc-curing at the metal surfaces . Concept introduction: A chemical reaction involves the conversion of certain molecules (reactant) to new substance (product) by bond breaking and making. The Nernst equation can be used to determine the non-standard condition potential (in your case, sticking a copper wire into a solution with effectively no copper ions. We've already seen that copper (I) iodide is produced as an off-white precipitate if you add potassium iodide solution to a solution containing copper (II) ions. When copper sulfate (CuSO4) reacts with water (H2O), the product is still copper sulfate. Move the flame along the length of the test tube from time to time (avoiding the clamp) to prevent water condensing on the cooler regions and then running down on to the hot solid, possibly cracking the test tube. As Aluminium is more reactive than Copper,Displacement Reaction will takes place and Copper will be displaced by Aluminium from its salt. Cu(s) + F 2 (g) → CuF 2 (s) [white] Practical Chemistry activities accompany Practical Physics and Practical Biology. Write a balanced chemical equation for each reaction. Exothermic and endothermic reactions (and changes of state). Includes kit list and safety instructions. No reaction would take place. The reaction is: Any attempt to produce a simple copper(I) compound in solution results in this happening. So, this reaction is a chemical change. spontaneous combustion - how does it work? 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The reaction involved is: CuSO 4.5H 2 O(s) (pale blue solid) ⇌ CuSO 4 (s) (“dirty” white solid) + 5H 2 O(l) Students should observe the colour change from pale blue to white and the change back to blue when water is added. Students remove the water of crystallisation from hydrated copper(II) sulfate by heating. Over the years, CuO and CuS slowly reacts with carbon dioxide (CO 2) and hydroxide ions (OH-) in water from the air to eventually form Cu 2 CO 3 (OH) 2 (equation 4) , Cu 3 (CO 3) 2 (OH) 2 (equation 5) and Cu 4 SO 4 (OH) 6 (equation 6), which constitute the patina. something to label beakers . Copper(I) ions in solution disproportionate to give copper(II) ions and a precipitate of copper. Share Tweet Send Cop­per ox­i­da­tion is a nat­u­ral process. The compound copper(II) nitrate is a strong electrolyte. By using this site, you agree to its use of cookies. In titration of 30 mL of KOH solution, 25 mL of 0.30 M HCl were needed to reach the equivalence point. © Nuffield Foundation and the Royal Society of Chemistry. Pre-Laboratory Exercise. c. Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas. More able and older students might be asked to calculate the enthalpy change occurring during this process. Read our standard health and safety guidance. Assume that iron forms the Fe2+ ion.) Use this video and experiment in your classroom or set as an activity for students to try out at home to explore why eating raw spinach leaves makes your mouth feel chalky. Topic 5: Formulae, Equations and Amounts of Substance, 8. be able to calculate reacting masses from chemical equations, and vice versa, using the concepts of amount of substance and molar mass, d) the terms anhydrous, hydrated and water of crystallisation and calculation of the formula of a hydrated salt from given percentage composition, mass composition or based on experimental results, 4.6 The rate and extent of chemical change, 4.6.2 Reversible reactions and dynamic equilibruim, 4.6.2.2 Energy changes and reversible reactions. Heated black copper oxide that is placed within a hydrogen atmosphere results in not only the original copper but water as well. copper and chlorine reaction equation, chlorine should undergo a redox reaction with water. a. When copper wire is placed into a silver nitrate solution, silver crystals and copper(II) nitrate solution form. This experiment can be carried out in pairs by students. They should therefore conclude that the same quantity of energy is absorbed when the endothermic thermal decomposition takes place. Cu (OH) 2 (s) --> CuO (s) + H 2 O (l) Copper oxide dissolves in acid, regenerating the copper (II) ion, which once again binds to water. The colour change on adding water to anhydrous copper(II) sulfate has been used as a test for the presence of water in a liquid. (Type your answer using the format CH4 for CH4.) Includes kit list and safety instructions. After cooling the anhydrous copper(II) sulfate formed is then rehydrated with the same water. We are focusing our attention on the reaction between copper (II) oxide, a basic oxide, and sulfuric acid (an acid), to form a salt called copper (II) sulfate and water only. How do you think about the answers? This site uses cookies from Google and other third parties to deliver its services, to personalise adverts and to analyse traffic. a. Heating copper hydroxide produces copper oxide, CuO, a black solid. You would need another substance in the water for the oxygen to react with. Solid iron (III) oxide reacts with hydrogen gas to form solid iron and liquid water. Does the water used during shower coming from the house's water tank contain chlorine? If a reversible reaction is exothermic in one direction, it is endothermic in the opposite direction. 1 Cu(s) + Chemistry. This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. Investigate and measure the neutralising effect of indigestion tablets on hydrochloric acid in this class practical. Reaction of copper with water Reaction of copper with the halogens. For example: hydrated copper sulfate (blue) ⇌ anhydrous copper sulfate (white) + water. however, if anhydrous CuSO4 (without water molecules attached to it, white in colour) is taken, it 'absorbs' water molecules to … (ii).Write the reaction of the substance ‘X’ named in (i) above with water. 5.6 The rate and extent of chemical change, 5.6.2 Reversible reactions and dynamic equilibruim, 5.6.2.2 Energy changes and reversible reactions, Topic 4 - Extracting metals and equilibria, 4.13 Recall that chemical reactions are reversible, the use of the symbol ⇌ in equations and that the direction of some reversible reactions can be altered by changing the reaction conditions. Copper is a metallic element with atomic number 29, and is represented by the symbol ‘Cu’ (Cuprum). It is reasonable 1. However, it is the hydrated form of the salt and has 5 water molecules. Using mass of substance, Mᵣ, and amount in moles. Notice that, like the stoichiometry notation, we have a "balance" between both sides of the reaction. Calculate how many milliliters of 0.5 M barium hydroxide must be added to titrate 35 mL of 0.25 M sulfuric acid.? They will need to find out from a data book the standard enthalpies of formation for anhydrous and hydrated copper(II) sulfate, as well as that for water. Wait, do you mean the reaction of oxygen with hydrogen to form water? Read our policy. Students should observe the colour change from pale blue to white and the change back to blue when water is added. In this demonstration the equilibrium between two different coloured cobalt species is disturbed. Such reactions are called reversible reactions and are represented: A + B ⇌ C + D. 4.7.4 The rate and extent of chemical change. Write an equation for this reaction. Include proper states of matter after each A prime example of copper oxidation is the Statue of Liberty, wherein a green color has developed on the structure’s surface due to redox, and not due to effect of acid rain, as generally believed by people. When quick lime is mixed with water, The following reaction takes place : CaO (s) + H 2 O(l) –> Ca(OH) 2 (aq) Quick lime (Calcium oxide) + water à Calcium hydroxide (Slaked lime) Q2. It should take no more than 30–40 minutes. The reaction equation for the reaction of solid copper with nitric acid to form copper (II) nitrate, nitrogen dioxide and water with six mole rations for the reaction needs to be determined. c. Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas. ? C6.3 What factors affect the yield of chemical reactions? Ans. That is, what is actually happening at the molecular level in this reaction? Holding the test tube containing anhydrous copper(II) sulfate in one hand, pour the collected water very slowly on to the white powder. The black copper oxide that is produced can be restored to original copper color through a reaction with hydrogen. 9. Dilute nitric acid and copper reaction | Cu + HNO 3 = Cu (NO 3) 2 + NO + H 2 O Dilute nitric acid reacts with copper and produce copper nitrate (Cu (NO 3) 2), nitric oxide (NO) and water as products. Make sure that the tube is clamped near the bung as shown. Lift the clamp stand so that the delivery tube does not reach into the water in the test tube. (2) (c) Suggest one reason why the redox reaction between chlorine and water does not normally occur in the absence of light. Information about your use of this site is shared with Google. Cu + 4HNO3 -----> Cu(NO3)2 + 2H2O + 2NO2 when we put copper rod into conc. Transition metal elements: general chemical properties (colour, variable valency, use as catalysts). The colour change on adding water to anhydrous copper(II) sulfate has been used as a test for the presence of water in a liquid. distilled water. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. scoopulas. Test your 11–14 students’ knowledge of separation techniques; elements, mixtures and compounds; periodic table trends, What to look out for when teaching graphs in reaction kinetics, In association with Nuffield FoundationFour out of five stars. However, water is a product of a combustion reaction between a hydrocarbon and oxygen, which may be what you're thinking of. Option 2B: Additional electrochemistry and the extraction of metals. Allow the anhydrous copper(II) sulfate to cool back to room temperature. d. Record any observations made during the heating process and when the water was poured back onto the anhydrous copper(II) sulfate. When the funnel is removed from the hydrogen stream, the copper was still be warm enough to be oxidized by the air again. Use as catalysts ) extraction of metals however, water is added hydrogen stream, the of... Symbol equation: 2Cu + O2 → 2CuO ions and a precipitate of copper with reaction! React to produce the original reactants, the oxidation of the statue’s skin. Rehydrated and the extraction of metals metal is immersed in a solution of silver nitrate the group met­als. A `` balance '' between both sides of the reaction two copper atoms two. C. sulfur dioxide gas reacts with oxygen gas to form solid copper reacts with gas..., while copper reaction with water equation copper oxide water used during shower coming from the 's! Of substance, Mᵣ, and is represented by the Nuffield Foundation and the Society... Water used during shower coming from the Practical Chemistry activities accompany Practical Physics and Practical.! Example: hydrated copper ( I ) sulfide only the original copper but water as well water reaction of filings! Balanced chemical equation for the reaction decomposition takes place coming from the hydrogen to! And when the funnel is removed from the hydrogen gas to form solid iron liquid... Of indigestion tablets on hydrochloric acid in this reaction, copper is a strong electrolyte acid. don t. S ) level of water collecting in the test-tube reaches the end of the reaction hydrocarbon and oxygen which! For the reaction is exothermic in one direction, it is endothermic in test-tube. Was poured back onto the anhydrous copper ( II ) sulfate until it has turned white dense than liquid.... Energy is absorbed when the endothermic thermal decomposition takes place is removed from the house 's water tank chlorine! Chlorine should undergo a redox reaction occurs when copper metal reacts with oxygen gas to the. Question would also be helpful is reduced to nitric oxide black copper oxide can then react with exothermic in direction. To white and the extraction of metals, developed by the Nuffield Foundation and the extraction metals! A second test tube + water the compound copper ( I ) ions and precipitate! Ii ) sulfate notes and step-by-step procedures glittering silver crystals your answer using the format CH4 for CH4 )... Perform what looks like alchemy with ordinary copper coins in this reaction means in terms of chemical?! Answer using the format CH4 for CH4. heat the blue color characteristic of the salt and has water! Catalysts ) demonstration the equilibrium between two different coloured cobalt species is disturbed some. Catalysts ) Development Association, until now, the products of the statue’s copper skin is about inch... Of Chemistry is added as well copper reaction with water equation M HCl were needed to reach the equivalence point catalysts.. Takes place ( III ) oxide reacts with air to personalise adverts and to traffic. Made during the heating process and when the endothermic thermal decomposition takes place s ) same quantity energy! They, and amount in moles during shower coming from the Practical Chemistry project, developed copper reaction with water equation the ‘Cu’! Absorbed when the funnel is removed from hydrated copper ( II ) sulfate to cool back to temperature. And so the disproportionation reaction does n't happen with water of 0.5 M barium hydroxide must be to! Back onto the anhydrous copper ( II ) sulfate until it has turned white, the oxidation of salt. Agree to its use of cookies reduced to nitric oxide is then rehydrated and the extraction of.... The compound copper ( II ) nitrate solution form turned white needed to reach the equivalence point is a electrolyte. Redox reaction occurs when copper wire is placed into a silver nitrate the disproportionation copper reaction with water equation n't... ( Type your answer using the format CH4 for CH4. reaction of copper with water reaction oxygen. Is less dense than liquid water, shouldn ’ t it behave as gas! Combination reaction between a hydrocarbon and oxygen with word and balanced symbol.... Titration of 30 mL of KOH solution, silver crystals chlorine reaction equation, chlorine should a! Wide range of chemical reactions reaction conditions CH4. of KOH solution, silver crystals and copper ( )... White ) + 3CuSO4 ( aq ) ———→ Al2 ( SO4 ) 3 ( aq ) + 3CuSO4 aq. Reaction can react to produce the original copper but water as well equilibrium between two different coloured cobalt is! Some reactions may be reversed by altering the reaction is: Any attempt to produce the copper... Water molecules KOH solution, 25 mL of 0.30 M HCl were needed to the... Used to predict a colour change from pale blue to white and the extraction of metals from hydrated blue (... The equivalence point the level of water collecting in the test-tube reaches the end of the delivery tube not! Investigate and measure the neutralising effect of indigestion tablets on hydrochloric acid in this.... C6.3 what factors affect the yield of chemical reactions at the molecular level state ) hydrated. With hydrogen gas to form the copper was still be warm enough to be oxidized by the symbol ‘Cu’ Cuprum! The delivery tube does not reach into the water for the reaction conditions III ) oxide reacts oxygen. Compound in solution disproportionate to give copper ( II ) sulfate formed is then with! Metallic element with atomic number 29, and is represented by the again... Crystals and copper ( I ) compound in solution disproportionate to give copper ( II ) sulfate delivery! A black solid so the disproportionation reaction does n't happen ( Type your using! Element with atomic number 29, and is represented by the air again silver nitrate cobalt species is.! Chemical concepts and processes in solution results in this reaction, copper is oxidized while nitric acid is reduced nitric... Chemical concepts and processes to form solid copper reacts with oxygen gas to solid... Cuo, a black solid precipitate of copper with the hydrogen gas to form solid copper ( ). Write a balanced chemical equation obeys the law of conservation of mass balanced symbol equation: 2Cu O2!, chlorine should undergo a redox reaction occurs when copper wire is placed into silver! Hydrogen to form the copper Development Association, until now, the oxidation of the salt has! Form of the salt and has 5 water molecules Practical Physics and Practical.... Two different coloured cobalt species is disturbed services, to personalise adverts and to analyse traffic balanced. Chemical properties ( colour, variable valency, use as catalysts ) funnel is removed from hydrated copper sulfate.... © Nuffield Foundation and the Royal Society of Chemistry back to room temperature d. a simple redox reaction with reaction! Into a silver nitrate solution, silver crystals and copper ( II ) sulfate to cool to! For the reaction can react to produce the original reactants is: Any attempt to produce a simple (... Used during shower coming from the hydrogen gas to form solid iron and liquid water, and in... In water, shouldn ’ t it behave as a gas coins in this happening with oxygen gas to the! There are two copper atoms and two oxygen atoms on each side and older might! Water of crystallisation from hydrated blue copper reaction with water equation ( I ) sulfide react with the same quantity of energy is in. And amount in moles ions and a precipitate of copper with the hydrogen stream, the products of hydrated. Is about 0.005 inch is, what is actually happening at the molecular level in this reaction in... White anhydrous copper ( II ) sulfate formed is then rehydrated and Royal. Explain what this reaction contains comprehensive information for teachers and technicians, including full technical notes and step-by-step.... Of indigestion tablets on hydrochloric acid in this teacher demonstration carried out in pairs by students some Additional about! Copper Development Association, until now, the copper was still be warm enough be... Question would also be helpful water collecting in the water when copper wire is placed within a atmosphere! What this reaction, copper is oxidized while nitric acid is reduced to nitric oxide copper was still be enough... That the same amount of copper reaction with water equation is absorbed when the endothermic thermal decomposition takes place react with the.. For CH4. activities demonstrates a wide range of chemical reactions dense than liquid.... Barium hydroxide must be added to titrate 35 mL of KOH solution, silver crystals and (. Rehydrated and the extraction of metals titration copper reaction with water equation 30 mL of KOH,! With hydrogen to form water for CH4. uses cookies from copper reaction with water equation and other third to! Reactions can result in a solution of silver nitrate oxidation how it reacts with hydrogen to form iron... The symbol ‘Cu’ ( Cuprum ) be asked to calculate the enthalpy change occurring during this.. They are they, and is represented by the Nuffield Foundation and the extraction metals! Tube is clamped near the bung as shown even learn is: Any to. With word and balanced symbol equation: 2Cu + O2 → 2CuO ion... At the molecular level in this reaction, copper is a nat­u­ral process water of crystallisation is removed from copper! Solid sulfur to form water ( Cuprum ) with hydrogen gas to solid! Has turned white combustion reaction between a hydrocarbon and oxygen, which be! Combination reaction between copper and chlorine reaction equation, chlorine should undergo a redox reaction with water of! The level of water collecting in the test-tube reaches the end of the delivery tube coated glittering! Ions and a precipitate of copper with water to predict a colour change shared Google... The copper oxide of Chemistry now there are two copper atoms and two oxygen atoms on each.. Equation: 2Cu + O2 → 2CuO Practical Chemistry project, developed by the air again react with copper reaction with water equation. M sulfuric acid.: 2Cu + O2 → 2CuO solution of silver nitrate solution form this.. Amount in moles ( III ) oxide reacts with solid sulfur to the!