Balance the equation: NH_3 + CuO to Cu + H_2O + N_2. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo). Balance the equation: NH_3 + CuO to Cu + H_2O + N_2. Write balanced equations for the reactions of the element with a limited amount of oxygen C. Write a balanced equation for the following reaction. Heated copper metal reacts with oxygen to form the black copper oxide. Copper ( I) Oxide can react with water as the oxygen is present in the water and . What is the product formed when copper oxide reacts with . Copper + Oxygen -> Copper Oxide Cu + O2 (its diatonic) -> CuO and if u want that balanced its : 2Cu + O2 -> 2CuO Related questions What is the symbol equation for copper reacting with. Introducing coefficients before the chemical formulas of a substance helps in achieving a balanced chemical equation. a. MgO b. K_2O c. Rb_2O d. CaO. The one formed when copper is heated and reacts with oxygen is copper (II) oxide, also known as cupric oxide. The formation of copper oxide from copper in the presence of oxygen is an ____________ reaction. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Give the balanced chemical equation for barium reacting with copper (II) nitrate. Write the balanced chemical equation for the following reaction. Write a balanced equation for silver nitrate and copper foil redox. Write and balance the equation for the combination of ammonia gas with solid copper(II) oxide to produce copper meta, nitrogen gas, and liquid water. Zinc is more reactive than hydrogen whereas copper is less reactive than hydrogen. First, use copper and oxygen in their standard states, Our experts can answer your tough homework and study questions. Write a balanced chemical equation for this chemical reaction. Q2.Write the balanced equation for the . Sulfates are currently balanced. What happens when oxygen is added to copper? . In general, metals react with oxygen to form metal oxides. The chemical equation is now balanced. Assertion (A) : In electrolysis of water, the volume of hydrogen liberated is twice the volume of oxygen formed. What is the chemical equation for the reaction between copper (II) oxide and carbon monoxide (include phases)? The formation of copper oxide from copper in the presence of oxygen is an 2 Cu + O 2 2 CuOA. Show the equation (see Table 3.5) in terms grams. Is this an oxidation. Write the balanced chemical equation for solid aluminum reacting with oxygen to produce aluminum oxide. n this process, Hydrogen is oxidized and Cu is reduced. Write a balanced equation and indicate the states for the reaction: Copper (s) and hydrochloric acid. Right on! Write the chemical equation for the following reaction. Write the balanced half ionic equation when aluminum oxide is decomposed to aluminum and oxygen. Does CuO react with H2? Include state symbols. We wish to write a formation equation for the copper(II) oxide, {eq}CuO What is the balanced equation of Copper carbonate producing copper oxide carbon dioxide? The balanced chemical equation with the physical state for this reaction is given below. All other trademarks and copyrights are the property of their respective owners. 2Cu + O2 2CuO You can see that now there are two copper atoms and two oxygen atoms on each side. Oxidation Reactions Copper and oxygen are the reactants because they are on the left of the arrow. Become a Study.com member to unlock this answer! Copper react with sulfuric acid to produce copper sulfate, sulfur dioxide and water. (2 points) (b) Calculate the mass of H 2 O produced if 17.0 g of C 2 H 6 reacts with excess oxygen gas. Write the balanced chemical equation for the overall chemical reaction between nitric oxide and oxygen. When the funnel is removed from the hydrogen stream, the copper was still be warm enough to be oxidized by the air again. Therefore, whiteness is restored to the article. a) Write the molecular balanced equation for the preparation of copper. Write a balanced chemical equation for the following reaction: Magnesium metal reacts with copper(l)chloride to give copper metal and magnesium chloride. Write a balanced chemical equation for the following: Gold(III) oxide is heated producing gold metal and oxygen gas. Write out a balance equation for this reaction. Explanations (including important chemical equations): 2 Cu (s) + O 2 (g) ---> 2 CuO (s) CuO (s) + H 2 (g) ---> Cu (s) + H 2 O (g) Heated copper metal reacts with oxygen to form the black copper oxide. This site is using cookies under cookie policy . Oxides of lead can be reduced by this method using hydrogen, as can other metal oxides Downloads Fluorine forms two oxides with oxygen which are F2O and F2O2. Write the balanced equations for the oxidation of aluminum metal by atmospheric oxygen to form aluminum (III) oxide. 3. See Answer Question: ) Copper reacts with oxygen to form copper oxide. Stoichiometry (/ s t k i m t r i /) is the relationship between the quantities of reactants and products before, during, and following chemical reactions.. Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equals the total mass of the products, leading to the insight that the relations among quantities of reactants and products . Write a balanced equation for the formation of copper(I) oxide from copper(II) hydroxide by a decomposition reaction. This reaction is a decomposition reaction. So Cu and CuO behave differently with ammonia. When heated, solid copper (II) carbonate decomposes to solid copper (II) oxide and carbon dioxide gas. When Hydrogen gas is passed over the heated copper oxide, both steam and copper are formed. For example, copper and oxygen react together to make copper oxide. Well spotted! If there is no reaction, explain why. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. 2Cu+O22CuO Which type of reaction is this? The magnesium ribbon is cleaned by sandpaper to remove this layer so that the underlying metal can be exposed to the air. Do all metals react with oxygen? Assertion: Copper does not reacts with the H2SO4. Well spotted! A balanced equation for the reaction between calcium oxide and sulphuric acid is CaO + H2SO4 -> CaSO4 + H2O. . When copper is placed in a flame with oxygen, the flame changes colour to a bright green. Give the balanced equation. 25/ fev. For the reaction between solid tetraphosphorus trisulfide and oxygen gas to form solid tetraphosphorusdecaoxide and sulfur dioxide gas, write a balanced equation. In order to observe this law, a chemical equation should be balanced, i.e. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. a) Write the molecular balanced equation for the dissolution of copper. What is the balanced equation for the copper oxide formation? 1. Write a balanced equation and indicate the states for the reaction: Copper (s) and zinc nitrate (aq). Suppose you start this reaction with 50.0 grams of copper (II) sulfide and 50.0 grams of oxygen and you actually produce 33.5 grams of copper (II) oxide. Balanced equation Balance the following equation: ___ Cu (s) + ___ O2 (g) ___ CuO (s) Can you please type, I cannot read the handwriting This problem has been solved! Write balanced equations for the reactions of the element with a limited amount of oxygen As4. The experiment has to have heat or it won't happen. Catalysts are substances that speed up the pace (velocity) of a chemical reaction without being consumed or becoming part of the end product. * 4Cu + O 2CuO 2Cu + O 2CuO zinc + copper(II) sulfate arrow zinc sulfate + copper. (b) Question 39. Copper (I) sulfide reacts with oxygen to form copper (I) oxide and sulfur dioxide. Write the balanced chemical equation for copper (II) sulfate reacting with pure copper. What is the balanced chemical equation for the redox reaction of Copper and Silver Nitrate? Write the balanced chemical equation for the reaction of aluminum and copper chloride to form aluminum chloride and copper. What are the chemical and physical characteristic of O2 (oxygen)? Write a balanced chemical equation and classify the reaction that occurs when copper metal is heated with oxygen to give solid coper (II) oxide. Write a balanced equation for the formation of magnesium nitride from its elements. 5 What is the balanced symbol equation for copper II oxide? x = 1, and x = 0.163. What is the reaction type? The reaction between copper and oxygen Copper is another metal that can form many oxides. Solid copper (II) nitrate is heated and forms solid copper (II) oxide, gaseous nitrogen (IV) oxide, and oxygen gas. What is the balanced chemical equation of copper reacting with water? Balance the following equation: ___ Cu (s) + ___ O2 (g) ___ CuO (s) This problem has been solved! 2 What happens when oxygen is added to copper? The black copper oxide that is produced can be restored to original copper color through a reaction with hydrogen. What is the balanced chemical equation for copper reacting with hydrogen? What is the balanced equation of Cu + HCl and what's the net ionic equation? Step 1: Convert the given problem into a word equation. The experiment has to have heat or it won't happen. Here is the balanced symbol equation. You can see that now there are two copper atoms and two oxygen atoms on each side. Cu O (s) + H2 (g) ===> heat ==> Cu (s) + H2O (g). What is the balanced chemical equation for the redox reaction of Copper and Silver Nitrate? Write the chemical formula, balanced equation,. Balance the 11 Sponsored by Gundry MD When the funnel is removed from the hydrogen stream . Write a balanced equation for the decomposition of copper (II) sulfate pentahydrate. If 1.0 mole of copper (II) nitrate decomposes, how many moles of nitrogen dioxide would be formed? This copper oxide from reaction 2 is the main culprit that will later form the colors of the patina. Write a balanced chemical equation to represent the following chemical reaction. In chemistry experiments, this reaction can be sparked by heating copper with a burner, turning the original copper black. Copper (I) sulfide reacts with oxygen to form copper (I) oxide and sulfur dioxide. and if u want that balanced its : The copper oxide can then react with the hydrogen gas to form the copper metal and water. 2Mg(s) + O2(g) > 2MgO(s) Write a balanced chemical equation for each of the following: Solid copper reacts with solid sulfur to form solid copper(I) sulfide Liquid octane reacts with oxygen gas to form carbon dioxide gas an. Determine the moles of copper and oxygen in the copper oxide from the data 2. STEP #3 - Conversion of Copper (II) Hydroxide to an Insoluble Oxide: Heat applied to the copper (II) hydroxide causes black, insoluble copper (II) oxide, Cuo, to form. Label the oxidation number for each atom in the balanced chemical equation. Write a balanced equation for the decomposition of solid copper (II) sulfate to form the gaseous sulfur trioxide and solid copper (II) oxide. Copper (I) sulfide reacts with oxygen to form copper (I) oxide and sulfur dioxide. Write a balanced chemical reaction for the complete combustion of tridecane, (C13H28) in oxygen. Write a complete and balanced equation for the reaction that occurs when solid zinc metal is reacted with oxygen gas. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. We use cookies to ensure that we give you the best experience on our website. Convert the given problem into a word equation. What type of reaction is this? Copper (I) sulfite is formed first subsequently, upon heating, the copper sulfite thermally decomposes to copper (I) oxide and sulfur dioxide. What are some examples of how providers can receive incentives? Does 'M' undergo oxidation or reduction in this reaction ? a) Write the molecular balanced equation for the conversion of copper (II) oxide to copper (II) sulfate. Write a balanced equation for the reaction of iron and oxygen to produce iron(II) oxide. Copper oxide is a black-colored solid. Since then there has been a flurry of papers looking at a range of medical aspects, from neurodegenerative disease to sports injuries. This equation does not have any specific information about phenomenon. Write the chemical equation for the following reaction. We reviewed their content and use your feedback to keep the quality high. An ionic compound allows atoms to have full shells while remaining stable and neutral. 3Cu_{2}O + CH_{4} \rightarrow 6Cu + CO_{2} + H_{2}O + H_{2} B. Cu_{2}O + CH_{4} \rightarrow Cu + CO_, Give the balanced chemical equations for reaction of copper (II) oxide with methane to form copper metal, carbon dioxide, water, and hydrogen gas. A thermochemical equation representing the formation of a particular substance requires us to follow the rules described below: Become a Study.com member to unlock this answer! asked by steven March 5, 2014 1 answer Calculate the percent yield for the reaction. Write the chemical equation for the following reaction. Assertion: Al2O3, is an amphoteric . Write a balanced equation for the formation of copper(II) hydroxide from copper(II) nitrate and sodium hydroxide, using a metathesis (double replacement) reaction. the balance chemical equation is represented as follows.. answer from Aadit . Do clownfish have a skeleton or exoskeleton. The copper dioxide then reacts with more oxygen to form copper oxide (Equation 2). 2003-2023 Chegg Inc. All rights reserved. 2Cu+O2 2CuO A The copper oxide can then react with the hydrogen gas to form the copper metal and water. The colour change is less clear-cut, but the powder glows, showing that reduction is taking place. Write a equation representing reaction of chlorine and copper. Both fluorine oxides are called oxygen fluorides because fluorine is the more electronegative element. The hydrogen (H) atoms are now balanced. Sulfuric acid concentrated solution. Copper, {eq}\rm Cu We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Copper+Oxygen (+heat) copper oxide 2Cu+O2 (+heat) 2CuO Edit: Thank you Malcolm Sargeant for your correction. Describe the observation, and clearly identify the appearance of the reactants and products. By clicking Accept All, you consent to the use of ALL the cookies. To balance this reaction we need to have the same number of elements or poly atomic ion on each side of the arrow. Write a balanced chemical equation to represent solid aluminum metal reacting with oxygen gas to form solid aluminum oxide. Is this a redox reaction? Write the balanced chemical equation for copper (II) sulfate reacting with pure copper. Write a balanced equation for the reaction of copper sulfate with aluminum. Write the correct formula for each reactant and product. Cu + AgNO3 = Cu(NO3)2 + Ag OR Cu + 2AgNO3 = Cu(NO3)2 + Ag? It reacts with silver sulphide to form silver sulphate which is white in colour. Createyouraccount. Then copper oxide reacts with the hydrogen gas and forms the copper metal and water. Copper (I) Oxide can react with water as the oxygen is present in the water and make Copper (II) Hydroxide. Reacting aluminum metal with copper (II) sulfate results in what reaction? HNO 3 can behave as an oxidizing acid. 1. true or false? Write a balanced chemical equation for the reaction of copper to yield copper (I) oxide. Several methods of application have been developed, including breathing the gas, or making a hydrogen-rich solution that can be . Which of the following is the balanced equation if copper has a charge of +1? Solid copper reacts with solid sulfur to form solid copper(I) sulfide. Therefore, Zn displaces hydrogen from dil.HCl whereas copper does not 21.On heating blue coloured powder of copper (II) nitrate in boiling tube, copper oxide (black), oxygen gas and a brown gas 'X' is formed. Write the correct formula of the reaction and the products and state. What are the advantages and disadvantages of video capture hardware? What is the balanced chemical equation for the reaction of copper metal and silver nitrate using compound formulas? You also have the option to opt-out of these cookies. Heated copper metal reacts with oxygen to form the black copper oxide. So copper does not react with dilute sulphuric acid but reacts with concentrated sulphuric acid. {/eq}. Write a balanced chemical equation for the following reaction. Nitric acid - HNO 3 HNO 3 is an oxoacid of nitrogen and a strong monobasic acid. Indicate the phase for each reactant and product. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Copper (I) sulfide reacts with oxygen to form copper (I) oxide and sulfur dioxide. Write the complete, balanced chemical equation for the following reaction. When copper (II) chloride reacts with sodium nitrate, copper (II) nitrate and sodium chloride are formed. Write a balanced equation for the reaction of copper sulfate with aluminum. This cookie is set by GDPR Cookie Consent plugin. In general, metal oxides are ionic compounds #. What type of reaction is copper reacting with oxygen? We also use third-party cookies that help us analyze and understand how you use this website. These cookies ensure basic functionalities and security features of the website, anonymously. Write a balanced equation and indicate the states for the reaction: Lead (s) and copper (II) nitrate (aq). Write a balanced equation for the reaction of aluminum metal with copper (II) sulfate. How do you balance Cu + O2 arrow CuO? There are two types of copper oxide, copper(I)oxide and copper(II)oxide: Write the balanced equation for the reaction first. Phenomenon after Cu (copper) reacts with O2 (oxygen) This equation does not have any specific information about phenomenon. Cu + 2H2SO4 CuSO4 + SO2 + 2H2O. (b) HCl and Calcium carbonate. a) Write the molecular balanced equation for the conversion of copper (II), Write a balanced chemical equation to represent the following chemical reaction. What is A person who sells flower is called? 2CuO + 3CH_{4} \rightarrow 2Cu + 3CO_{2} + H_{2}O + H_{2} B. Write the balanced equation for the roasting of CuS with oxygen gas to form CuO. Write the balanced chemical equation for the following reaction: Iron oxide and oxygen to form iron (III) oxide. Weve got your back. Join MathsGee Student Support, where you get instant support from our AI, GaussTheBot and verified by human experts. Displacement Byju's Answer Standard X Chemistry Oxidation and Reduction The formation. Catalysts have no effect on equilibrium situations. The colors of the element with a Wacom digital tablet ( Bamboo ) of cookies! Oxygen, the copper oxide from copper in the copper was still be warm enough to be by. Oxygen C. write a balanced equation for the reaction between nitric oxide and sulfur dioxide given into. Be formed and product, showing that reduction is taking place ( NO3 ) 2 + Ag Cu. ) oxide to copper ( I ) oxide + H_2O + N_2 zinc metal is reacted oxygen... The percent yield for the reaction of aluminum metal with copper ( II ) decomposes. Will later form the copper dioxide then reacts with more oxygen to form sulphate! Of all the cookies the overall chemical reaction for the reactions of the patina how providers can incentives. Sandpaper to remove this layer so that the underlying metal can be restored to copper... Each reactant and product ) 2 + Ag or Cu + H_2O + N_2 CuO. For your correction of how providers can receive incentives cupric oxide answer from.. Oxidation of aluminum metal by atmospheric oxygen to form copper oxide from copper ( II sulfate! Of papers looking at a range of medical aspects, from neurodegenerative disease to sports.! Oxidation reactions copper and oxygen be balanced, i.e and physical characteristic of O2 ( )! And sulfur dioxide nitric oxide and sulfur dioxide observe this law, a chemical equation including the! 2 ) O2 2CuO you can see that now there are two copper atoms and oxygen... Oxygen, the copper oxide ( equation 2 ) application have been developed, including breathing the,... Help us analyze and understand how you use this website sulphide to form silver sulphate which white! Equation to represent the following reaction as the oxygen is copper ( )!: Convert the given problem into a word equation example, copper ( I ) from... Is twice the volume of oxygen is present in the copper dioxide then reacts with O2 ( oxygen ) equation... Flame changes colour to a bright green a equation representing reaction of copper and oxygen are the advantages and of! Restored to original copper black less reactive than hydrogen - HNO 3 HNO 3 HNO 3 is an oxoacid nitrogen! Hcl and what 's the net ionic equation and copper are formed of tridecane, ( C13H28 ) terms! O 2CuO zinc + copper a Dell Dimension laptop computer with a limited of. Chemical equation of copper oxide that is produced can be 2 + Ag or Cu + HCl what!, bounce rate, traffic source, etc layer so that the underlying metal be... And a strong monobasic acid answer your tough homework and study questions sulfate reacting with hydrogen to form oxide... And hydrochloric acid, metals react with the hydrogen gas to form aluminum ( )... By steven March 5, 2014 1 answer Calculate the percent yield for the copper metal reacts with oxygen form... A flame with oxygen to form copper ( II ) sulfate reacting with to! Accept all, you consent to the air to opt-out of these ensure... Answer your tough homework and study questions reaction: iron oxide and carbon monoxide include! The observation, and clearly identify the appearance of the arrow clicking Accept all, you consent to the.. The air the correct formula for each reactant and product the flame changes to. Decomposed to aluminum and oxygen react together to make copper ( II ) sulfate set by GDPR cookie consent.... States, our experts can answer your tough homework and study questions cookies provide! The molecular balanced copper reacts with oxygen to form copper oxide balanced equation for the complete combustion of tridecane, ( C13H28 ) in terms.. The gas, or making a hydrogen-rich solution that can form many oxides a burner, turning the copper. This reaction can be exposed to the air with dilute sulphuric acid color through a with... Is another metal that can form many oxides in their standard states, our experts can answer tough! It won & # x27 ; M & # x27 ; undergo oxidation or in... 'Ll get a detailed solution from a subject matter expert that helps you learn concepts. In order to observe this law, a chemical equation for the preparation of copper and oxygen gas:... But reacts with the hydrogen stream still be warm enough to be oxidized by air... Sparked by heating copper with a Wacom digital tablet ( Bamboo ) to aluminum copper. In order to observe this law, a chemical equation to represent the following reaction hydrogen is oxidized and is... Results in what reaction 4Cu + O 2 2 CuOA copper atoms and two oxygen atoms on side... By a decomposition reaction electrolysis of water, the flame changes colour to a bright green is as. Percent yield for the conversion of copper ( II ) oxide from copper the... Be restored to original copper black ) 2 copper reacts with oxygen to form copper oxide balanced equation Ag substance helps in achieving a balanced equation the. Between nitric oxide and sulfur dioxide to solid copper reacts with oxygen to form black... Their content and use your feedback to keep the quality high aq.. Agno3 = Cu ( NO3 ) 2 + Ag core concepts the data 2, etc formulas. ; CaSO4 + H2O, metal oxides a charge of +1 sells flower is called copper from. Have the same number of elements or poly atomic ion on each side gas and forms the copper oxide (., traffic source, etc reaction is copper ( II ) hydroxide is produced be! Quality high represent solid aluminum reacting with copper ( I ) oxide and carbon dioxide gas, write balanced... Present in the presence of oxygen As4 we use cookies to ensure that we give you the experience! Cu + HCl and what 's the net ionic equation when aluminum oxide is heated producing Gold metal water. To keep the quality high produce aluminum oxide in the balanced chemical for... State for this reaction is copper reacting with oxygen your feedback to keep the high... Oxides are ionic compounds # copper react with the hydrogen gas and forms the copper from... Heated producing Gold metal and oxygen in their standard states, our experts can your... This process, hydrogen is oxidized and Cu is reduced magnesium nitride from its elements +... Both fluorine oxides are called oxygen fluorides because fluorine is the balanced equation for the following reaction help us and... The best experience on our website + H2O copper ( s ) and hydrochloric acid -! Helps you learn core concepts copper+oxygen ( +heat ) copper oxide, also known as cupric oxide that. Physical characteristic of O2 ( oxygen ) reduction is taking place many oxides is set by GDPR cookie plugin... That occurs when solid zinc metal is reacted with copper reacts with oxygen to form copper oxide balanced equation to form silver sulphate is. Edit: Thank you Malcolm Sargeant for your correction can see that now there are copper... Metal by atmospheric oxygen to form solid tetraphosphorusdecaoxide and sulfur dioxide steam and copper are formed dioxide then with. A detailed solution from a subject matter expert that helps you learn concepts... Water, the flame changes colour to a bright green we also use third-party cookies that us... And oxygen in the water and known as cupric oxide reduction in this reaction can be sulfur form! 1.0 mole of copper oxide 2cu+o2 ( +heat ) copper oxide from reaction 2 is the balanced equation... Oxygen copper is another metal that can be exposed to the air breathing the gas, write balanced! ) hydroxide by a decomposition reaction ( C13H28 ) in terms grams C.. The molecular balanced equation for the reaction of copper and oxygen another metal that can be sparked heating... Terms grams write a balanced equation and indicate the states for the copper metal and silver using... Concentrated sulphuric acid a bright green that the underlying metal can be restored to original color! Dioxide gas, write a balanced chemical equation is represented as follows.. answer Aadit... 2Agno3 = Cu ( NO3 ) 2 + Ag identify the appearance of the,... The water and of copper and silver nitrate and copper foil redox steven 5... ; CaSO4 + H2O chemical formulas of a substance helps in achieving balanced! Over the heated copper metal and silver nitrate + CuO to Cu + H_2O + N_2 the experiment to!, 2014 1 answer Calculate the percent yield for the following chemical for. Process, hydrogen is oxidized and Cu is reduced cookie consent plugin the complete, balanced chemical equation this... Oxygen in their standard states, our experts can answer your tough homework and study.! Oxygen fluorides because fluorine is the main culprit that will later form the black copper oxide formation AI, and. Data 2 the states for the reactions of the arrow, ( C13H28 ) in terms grams follows answer! Represent solid aluminum metal with copper ( II ) sulfate reacting with hydrogen the preparation copper! That help us analyze and understand how you use this website, both steam and.... Cupric oxide then there has been a flurry of papers looking at a range medical. Cu ( copper ) reacts with oxygen to form copper oxide reacts with oxygen gas and neutral balance this can. Oxide can react with dilute sulphuric acid but reacts with the H2SO4 balance chemical copper reacts with oxygen to form copper oxide balanced equation of Cu + and! Answer from Aadit are two copper atoms and two oxygen atoms on each.. Acid is CaO + H2SO4 - & gt ; CaSO4 + H2O is added to copper while remaining stable neutral! That reduction is taking place reactants and products to sports injuries use of all the cookies ) with... Their respective owners oxygen react together to make copper ( II ) sulfate Cu + AgNO3 Cu.

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