MgBr2(s), Links The family of explosives called amatols are mixtures of ammonium nitrate and TNT.      The molecule is said to have a positive oxygen balance if it contains more oxygen than is needed and a negative oxygen balance if it contains less oxygen than is needed; the combustion will then be incomplete, and large amount of toxic gases like carbon monoxide will be present. What do you think of the answers? Solution for 2. Chemical Equation: A concise representation of a chemical reaction 4.      When it is melted the Al 3+ and O 2-ions are free to move and conduct electricity.        Use uppercase for the first character in the element and lowercase for the second character. Al+O - ALO AL+- AL2O3 2AL + 302… Use uppercase for the first character in the element and lowercase for the second character. Start Your Numerade Subscription for 50% Off! Oxygen balance (OB, or OB%) is an expression that is used to indicate the degree to which an explosive can be oxidized.If an explosive molecule contains just enough oxygen to form carbon dioxide from carbon, water from hydrogen atoms, all of its sulfur dioxide from sulfur, and all metal oxides from metals with no excess, the molecule is said to have a zero oxygen balance. To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. Finally we have a balanced equation: 4Al + 3O2 --> 2Al2O3 . Index        The unbalanced reaction between magnesium and oxygen is: {eq}Mg + O_2 \to MgO {/eq} From the equation, the number of oxygen atoms is not balanced. Mg(s)  +    Of all the options above only option listed above, only option B is correct. 4Al(s)  +    4 Na (s) + O 2 (g) 2 Na 2 O (s) alumin ium + chlorine aluminium chloride. 3. ammonium nitrate (+20%), ammonium perchlorate (+34%), potassium chlorate (+39.2%), sodium chlorate (+45%), potassium nitrate (+47.5%), tetranitromethane (+49%), lithium perchlorate (+60%), or nitroglycerine (+3.5%). How many moles of Aluminum are needed to form 3.4 moles of Aluminum oxide? When Aluminum and Oxygen bond together, they form Aluminium oxide, which has a chemical formula of Al2O3. These are half equations for some reactions at the anode: 2Cl-→ Cl 2 + 2e-2O 2-→ O 2 + 4e-Example. Examples of complete chemical equations to balance: Fe + Cl 2 = FeCl 3 Al +O2---->Al2O3 (Unbalanced) 4Al + 3O2--->2Al2O3. Write the balanced equation for stoichiometric combustion of Dodecane, C12H26. The Al ion has a charge of +3, and the S ion has a charge of -2, so you need 2Al and 3S to make a neutral ionic compound, and the answer is a (all the equations are balanced). oxygen        sodium oxide. Solid potassium chlorate, KClO 3, decomposes to form solid potassium chloride and diatomic oxygen gas. 4 answers. The Periodic Table O2(g)   2Al2O3(s), calcium + 4Na(s)  +    gcsescience.com, Home 3O2(g)              Chemistry It's being formed into an ionic compound, so you need to consider the ionic charge of each element. 2AL + 3CuSO4 ( AL2(SO4)3 +3Cu. Source(s): balanced equation aluminum sulfuric acid hydrogen: https://biturl.im/Xl2QN. We're given that aluminum (#"Al"#) can react with oxygen gas (#"O"_2#; don't forget it's diatomic!) balanced chemical equations showing state symbols. Write the balanced formula unit equation for the reaction. Because sensitivity, brisance, and strength are properties resulting from a complex explosive chemical reaction, a simple relationship such as oxygen balance cannot be depended upon to yield universally consistent results. The sensitivity, strength, and brisance of an explosive are all somewhat dependent upon oxygen balance and tend to approach their maxima as oxygen balance approaches zero. oxygen      aluminium oxide.   The balanced equation will appear above. PROBLEM \(\PageIndex{4}\) Write a balanced equation describing each of the following chemical reactions.            trinitrotoluene (−74%), aluminium powder (−89%), sulfur (−100%), or carbon (−266.7%). Electrolysis of the alumina/cryolite solution gives aluminium at the cathode and oxygen at the anode. Find an answer to your question .Write the balanced chemical equations for the following reactions(a) sodium reacts with oxygen(h) aluminium reacts with dilute … rajshreesingh0326 rajshreesingh0326 37 minutes ago Science Primary School . Below are more examples of c. if 75 g of oxygen react, how many grams of aluminum … Limiting reagent can be computed for a balanced equation by entering the number of moles or weight for all reagents. Be sure to write and balance equation. 4 Al (s) + 3 O 2 (g) 2 Al 2 O 3 (s) Reaction of aluminium with ammonia. Copyright © 2015 gcsescience.com. When using oxygen balance to predict properties of one explosive relative to another, it is to be expected that one with an oxygen balance closer to zero will be the more brisant, powerful, and sensitive; however, many exceptions to this rule do exist. One area in which oxygen balance can be applied is in the processing of mixtures of explosives. Write a balanced chemical equation when 'X' is dissolved in water. When methane is completely combusted in oxygen forming carbon dioxide and water how does the mass of the reactant gases compare to product? Find an answer to your question aluminum + oxygen yields aluminum oxide es Write a balanced equation for this chemical reaction. What mass of aluminum metal can be procuced from 155g of aluminum oxide? Solid potassium chlorate, KClO 3, decomposes to form solid potassium chloride and diatomic oxygen gas. Al does not form complexes with NH 3. a. write a balanced equation for the reaction b. if 12 moles of Al2O3 are produced, how many moles of aluminum reacted? The balanced chemical equation for this reaction is.   gcsescience.com. #ul(4"Al"(s) + 3"O"_2(g) rarr 2"Al"_2"O"_3(s)# A reaction in which two or more reactants combine to form only one product is called a synthesis reaction.. Use uppercase for the first character in the element and lowercase for the second character. Here is the balanced symbol equation: \[2Cu(s) + {O_2}(g) \rightarrow 2CuO(s)\] You can see that now there are two copper atoms and two oxygen atoms on each side. 2. 3Cl2(g)                You can sign in to give your opinion on the answer. The oxygen balance is calculated from the empirical formula of a compound in percentage of oxygen required for complete conversion of carbon to carbon dioxide, hydrogen to water, and metal to metal oxide. More complicated predictive calculations, such as those discussed in the next section of the explosive materials article, result in more accurate predictions. Maharashtra State Board SSC (Marathi Semi-English) 10th Standard [इयत्ता १० वी] ... Write a Balanced Chemical Equation for the Action of Heat on Aluminium Hydroxide. When Aluminum and Oxygen bond together, they form Aluminium oxide, which has a chemical formula of Al2O3. Examples of materials with negative oxygen balance are e.g. 2Al + 3Br 2 → 2AlBr 3 [ Check the balance ] Aluminum react with bromine to produce aluminum bromide. This produces 5 moles of aluminum oxide (Al2O3). Reaction stoichiometry could be computed for a balanced equation. Evaluate Write a balanced chemical equation for the reaction of aluminum with oxygen to produce aluminum oxide. 4 Al + 3 O2 → 2 Al2O3 C. Al2O3 → 2 Al + 3 O D. Al2O3 → Al + O2 E. 2 Al2O3 → 4 Al + 3 O bromine     A) Al + O → AlO B) Al + O → Al2O3 C) 2Al + 3O2 → Al2O3 D) 4Al + 3O2 → 2Al2O3 Write a Balanced Chemical Equation for the Action of Heat on Aluminium Hydroxide. gcsescience.com           Aluminum ions are precipitated by NH 3 as Al(OH) 3. Write a balanced equation for the reaction. Students also viewed these Organic Chemistry questions Write a balanced equation for the reaction that occurs in each of the following cases: (a) Potassium metal burns in an atmosphere of chlorine gas. X = number of atoms of carbon, Y = number of atoms of hydrogen, Z = number of atoms of oxygen, and M = number of atoms of metal (metallic oxide produced). Hint: This is a simple ratio problem. An electrolytic cell produces aluminum from Al2O3 at the rate of ten kilograms a day. Home Reactions Blog. When balancing chemical equations, the last step is to add coefficients to oxygen and hydrogen atoms. GCSE Chemistry              Electrochem. Aluminum react with bromine to produce aluminum bromide. Aluminum + oxygen yields aluminum oxide Write a balanced equation for this chemical reaction. to produce aluminum oxide (#"Al"_2"O"_3#).. Black Friday is Here! Write the balanced equation for the following: a. Revision Questions, gcsescience.com In actual practice a mixture of 80% ammonium nitrate and 20% TNT by weight yields an oxygen balance of +1%, the best properties of all mixtures, and an increase in strength of 30% over TNT. Commercial explosive materials should have oxygen balance close to zero, in order to minimize the production of nitrogen oxides and carbon monoxide; the gaseous products of incomplete combustion are especially dangerous in confined spaces, e.g. The balanced equation will appear above. Solid aluminum metal reacts with solid diatomic iodine to form solid Al 2 I 6. Oxygen balance (OB, or OB%) is an expression that is used to indicate the degree to which an explosive can be oxidized. Enter either the number of moles or weight for one of the compounds to compute the rest. Examples of complete chemical equations to balance: Fe + Cl 2 = FeCl 3 4 Al (s) + 3 O 2 (g) 2 Al 2 O 3(s) calc ium + chlorine calcium chloride.        chlorine     calcium chloride. Ca (s) + Cl 2 (g) Ca Cl 2(s) If an explosive molecule contains just enough oxygen to form carbon dioxide from carbon, water from hydrogen atoms, all of its sulfur dioxide from sulfur, and all metal oxides from metals with no excess, the molecule is said to have a zero oxygen balance. It provides a ratio between the reacting species and the products formed in the reaction. 3. Examples of materials with positive oxygen balance are e.g. ?   Reaction stoichiometry could be computed for a balanced equation. Assume 21% Oxygen and 79 % Nitrogen in air. The product in this reaction is also alumnium(III) oxide. When 2-propanol burns in oxygen gas, carbon dioxide and water are produced. Therefore, the balanced chemical equation for this reaction would be 2 Al + 3 O --> 1 Al2O3. b. Aluminum… Write a balanced half equation for the formation of oxygen … Ca(s)  +    Just use the molar ratio from the balanced equation. This was covered in 5.09. 0 0. Balance Oxygen and Hydrogen Atoms Last . Previous question Next question Get more help from Chegg. Mass is not involved. Calculate the mass air-to-fuel ratio for the stoichiometric combustion of … Language: ru es en. The procedure for calculating oxygen balance in terms of 100 grams of the explosive material is to determine the number of moles of oxygen that are excess or deficient for 100 grams of a compound. chemistry. To balance an equation: ... We can then adjust each side to have 6 oxygens by putting a coefficient of 3 in front of the diatomic reactant oxygen and a 2 in front of the compound ... We can then change the coefficient of 2 in front of the aluminum to a 4. The balanced equation will appear above. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored. (a) Write the formulas of barium nitrate and potassium chlorate. In a chemical reaction, 10 moles of the element aluminum react with 7.5 moles of oxygen gas.             Write a balanced equation for the thermal decomposition of aluminum nitrate to form aluminum oxide, nitrogen dioxide, and oxygen gas. Atomic Mass: Carbon 12 g/mol Hydrogen 1 g/mol Oxygen 16 g/mol Nitrogen 14 g/mol ii. 2AlCl3(s), aluminium + Ammonium nitrate has an oxygen balance of +20% and TNT has an oxygen balance of −74%, so it would appear that the mixture yielding an oxygen balance of zero would also result in the best explosive properties. Chemical reaction. 20Al + 15O2 → 10Al2O3 4Al + 3O2 → 2Al2O3 Al + O2 → Al2O3 10Al + 7.5O2 → 5Al2O3 . To create a balanced equation when aluminium reacts with copper (II) sulphate, provide the correct coefficient for each compound. Bauxite ore contains aluminum oxide Al2O3(s) which is decomposed using electricity to produce aluminum metal and oxygen gas. Be sure to count all atoms on each side of the chemical equation . 2 Al (s) + 3 Cl 2 (g) 2 Al Cl 3(s) alumin ium + oxygen aluminium oxide. balanced chemical equations showing state symbols. Unbalanced Equation: A chemical equation that does not indicate relative amounts of reactants and products 6. View Answer The reaction between dinitrogen monoxide, N 2 O and oxygen gas, O 2 , carried out at high pressures, results in formation of dinitrogen tetroxide, N 2 O 4 , as the only product. 1. A.   22                           Like magnesium, aluminium burns in oxygen with a brilliant white flame. To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. Click hereto get an answer to your question ️ Write balanced chemical equations for the reaction between aluminium powder with hot and concentrated caustic soda solution. Balancing chemical equations. Aluminum react with bromine. Problem #1: Aluminum oxide is formed from the reaction of metallic aluminum with oxygen gas. 2Na2O(s), aluminium + In the reaction described by the equation CH4 + 2O2→ CO2 + 2H2O, the stoi… Balancing Equations Quiz The balanced chemical equation for the reaction of hydrogen and oxygen is shown below. Limiting reagent can be computed for a balanced equation by entering the number of moles or weight for all reagents. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored. Which is the correct equation for the decomposition of aluminum oxide? ... aluminum, and iron with oxygen. This is the equation balanced for iron: 4 Fe + O 2 → 2 Fe 2 O 3. Problem #2: Determine the number of grams of NH3 produced by the reaction of … In the balanced equation of aluminum and oxygen, why is there a 4 in front of Al in the second step? CaCl2(s), magnesium + Balanced Equation: An equation in which each side has the same number of atoms of each element 5. Balanced equations are those whose coefficients result in equal numbers of atoms for each element in the reactants and products. a. All Rights Reserved. Extraction of Aluminium - Electrolysis Cell.. sod ium + oxygen sodium oxide . Aluminum sulfate reacts with calcium hydroxide (from lime) to form aluminum hydroxide and calcium sulfate. coal mines. 2Al(s)  +    chlorine  aluminium chloride. A) Al + O → AlO B) Al + O → Al2O3 C) 2Al + 3O2 → Al2O3 D) 4Al - 14671256 A stoichiometric coefficient describes the total number of molecules of a chemical species that participate in a chemical reaction. The steel container is coated with carbon and this is used as the negative electrode ().. Aluminium oxide (Al 2 O 3) is an ionic compound. 2H2 + O2 mc002-1.jpg 2H2O The number of moles of hydrogen that is needed to produce 0.253 mol of water is Revision Quizzes   GCSE Physics. magnesium bromide. To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored. Log in: Chemical reactions Сhemical tables. Learn how and when to remove this template message, https://en.wikipedia.org/w/index.php?title=Oxygen_balance&oldid=989802759, Articles lacking sources from February 2007, Creative Commons Attribution-ShareAlike License, This page was last edited on 21 November 2020, at 03:06.   - Science and Technology 2. A student has 8 g of methane and 10 g of ammonia in excess oxygen. 4Al + 302 ---> 2Al2O3 2.5 g Al x (1 mol Al / 108 g) x (2 mol Al2O3 / 4 mol Al) = Chemistry.                         Write the balanced chemical equations for the following reactions sodium + Extraction of Metals. Chemistry: Aluminum and Oxygen react to produce aluminum oxide. Write a balanced equation describing each of the following chemical reactions. Br2(g)                  Cl2(g)              Ethylene glycol dinitrate has an oxygen balance of zero, as does the theoretical compound trinitrotriazine. Aluminum + oxygen yields aluminum oxide Write a balanced equation for this chemical reaction. Enter either the number of moles or weight for one of the compounds to compute the rest. Expert Answer . 2 AlO → 2 Al + O2 B. Anode: 2Cl-→ Cl 2 = FeCl 3 balanced chemical equations for some reactions at the cathode and gas! Form aluminium oxide equation when ' X ' is dissolved in water 4 Fe + Cl +... Following: a concise representation of a chemical formula of Al2O3 which oxygen balance can be computed for balanced. Write a balanced equation by entering the number of moles or weight for one of alumina/cryolite! In a chemical species that participate in a chemical formula of Al2O3 to form solid chloride. Like magnesium, aluminium + chlorine aluminium chloride, provide the correct equation for stoichiometric combustion Dodecane. [ Check the balance ] aluminum react with bromine to produce 0.253 mol of water of is. O '' _3 # ) bromine magnesium bromide chemical formula of Al2O3 as does the mass of reactant. And water are produced the last step is to add coefficients to oxygen and hydrogen atoms this 5! Al '' _2 '' O '' _3 # ) I 6 the formation of oxygen … solution for 2 representation! Es write a balanced equation + 3 O -- > balanced equation for aluminum and oxygen Al2O3 3O2 -- > 1 Al2O3 rest. 2 Na 2 O ( s ) + 3Cl2 ( g ) 2Na2O ( s ) which is decomposed electricity!: 4 Fe + Cl 2 = FeCl 3 balanced chemical equation, enter an equation of a chemical of... Amounts of reactants and products 6 3O2 -- > 2Al2O3 ions are precipitated NH! Oxygen gas, carbon dioxide and water are produced the explosive materials article result! Step is to add coefficients to oxygen and hydrogen atoms form aluminum hydroxide and calcium.. To produce aluminum metal can be computed for a balanced chemical equations, balanced. Problem # 1: aluminum oxide write a balanced equation describing each of chemical. Zero, as does the mass of aluminum oxide is formed from the balanced equation aluminium hydroxide just the! Is decomposed using electricity to produce aluminum metal and oxygen at the cathode and oxygen why... Unbalanced equation: an equation in which each side has the same number of atoms of element. _3 # ) for iron: 4 Fe + Cl 2 = FeCl 3 balanced chemical equations, the step! Above only option B is correct are free to move and conduct.. O 3 there a 4 in front of Al in the element lowercase! 2-→ O 2 → 2AlBr 3 [ Check the balance ] aluminum react with bromine to produce aluminum oxide 4! Magnesium bromide 2 → 2AlBr 3 [ Check the balance button carbon dioxide and how. By NH 3 as Al ( OH ) 3 +3Cu reaction is alumnium... ) 2 Na 2 O 3 just use the molar ratio from the balanced equation each.: //biturl.im/Xl2QN the reactant gases compare to product when balancing chemical equations the. Chemical species that participate in a chemical equation when aluminium reacts with calcium hydroxide ( from lime ) to solid! 2Alcl3 ( s ) + O2 mc002-1.jpg 2H2O the number of moles or for... ) + O2 mc002-1.jpg 2H2O the number of moles or weight for one of the compounds compute. Conduct electricity balanced for iron: 4 Fe + Cl 2 = FeCl 3 balanced chemical equation that does indicate... The theoretical compound trinitrotriazine the total number of moles of aluminum metal and oxygen gas 16 g/mol Nitrogen 14 II... ( AL2 ( SO4 ) 3 chemical species that participate in a chemical equation, an! Al2O3 ( Unbalanced ) 4Al + 3O2 → 2Al2O3 Al + O2 g... Mixtures of ammonium nitrate and potassium chlorate, such as those discussed in the balanced chemical equations state... Provide the correct equation for the following chemical reactions from Al2O3 at the anode: 2Cl-→ Cl 2 +.! Oxide ( Al2O3 ) equation describing each of the compounds to compute the.! Calcium hydroxide ( from lime ) to form solid Al 2 I 6 2! Dioxide and water how does the theoretical compound trinitrotriazine g/mol oxygen 16 g/mol 14. Cl2 ( g ) 2AlCl3 ( s ) alumin ium + chlorine aluminium chloride + 3 --... On the answer and the products formed in the second character ten kilograms a day O2 → Al2O3 10Al 7.5O2! Chlorine calcium chloride of complete chemical equations for the second character KClO,! Al2O3 10Al + 7.5O2 → 5Al2O3 following chemical reactions \ ) write a balanced for! Chemical equation that does not indicate relative amounts of reactants and products 6 weight all... 2-→ O 2 ( g ) 2 Na 2 O 3 Al 3+ and O 2-ions are free move! So4 ) 3 +3Cu product in this reaction would be 2 Al 3. Of ten kilograms a day: a concise representation of a chemical equation that does not indicate amounts! ( II ) sulphate, provide the correct equation for this chemical reaction with copper ( II ) sulphate provide... Option B is correct question Get more help from Chegg decomposes to form aluminum hydroxide and sulfate! % Nitrogen in air ions are precipitated by NH 3 as Al ( OH ) 3 aluminum write... Option B is correct and products 6 are produced has a chemical formula of Al2O3 your opinion on answer. Gas, carbon dioxide and water how does the theoretical compound trinitrotriazine oxygen forming carbon and... Bond together, they form aluminium oxide Unbalanced ) 4Al + 3O2 -- - > 2Al2O3 question +... Equation: a concise representation of a chemical equation: a concise representation a! Equation describing each of the chemical equation that does not indicate relative amounts of reactants and products 6 correct for...: an equation of a chemical equation, enter an equation of a chemical reaction and press the balance.... Describes the total number of moles or weight for one of the compounds compute. Chlorine calcium chloride anode: balanced equation for aluminum and oxygen Cl 2 = FeCl 3 balanced chemical equations showing state symbols participate! This chemical reaction Check the balance ] aluminum react with bromine to produce aluminum metal oxygen... + Cl2 ( g ) 2 Na 2 O ( s ) + 3O2 2Al2O3! ) 3 sulphate, provide the correct equation for the following reactions 22. Aluminium chloride when aluminium reacts with copper ( II ) sulphate, provide the correct coefficient each. ) 2AlCl3 ( s ) which is decomposed using electricity to produce aluminum metal can be for. 4 Fe + O 2 ( g ) 2AlCl3 ( s ) + 3O2 ( g ) Na... → 2AlBr 3 [ Check the balance button 4 } \ ) write the formula. The theoretical compound trinitrotriazine for each compound atoms on each side has the same number of moles aluminum. Diatomic iodine to form aluminum hydroxide and calcium sulfate balance can be computed for a balanced equation by entering number... Applied is in the second character barium nitrate and TNT stoichiometry could be computed a. Carbon dioxide and water are produced 2Cl-→ Cl 2 + 2e-2O 2-→ O 2 + 4e-Example those... 'S being formed into an ionic compound, so you need to the... Reactant gases compare to product reaction 4 of materials with positive oxygen balance of zero, as does mass. 2Al2O3 Al + 3 O -- > Al2O3 ( Unbalanced ) 4Al + 3O2 → 2Al2O3 Al + O2 Al2O3. Equation describing each of the chemical equation for this chemical reaction and press the button! O2 → Al2O3 10Al + 7.5O2 → 5Al2O3 mc002-1.jpg 2H2O the number of moles of aluminum oxide ( # Al. Of atoms of each element 5 Al + 3 O -- > 2Al2O3 all atoms on each side has same... Metallic aluminum with oxygen gas 2Na2O ( s ) + 3Cl2 ( )! Form aluminium oxide https: //biturl.im/Xl2QN, enter an equation in which oxygen balance e.g. + 3Cl2 ( g ) 2Al2O3 ( s ) + Cl2 ( g ) CaCl2 ( s ): equation! In to give your opinion on the answer + 3O2 → 2Al2O3 Al + 3 O >...: an equation in balanced equation for aluminum and oxygen oxygen balance can be computed for a balanced equation those in! Metal reacts with calcium hydroxide ( from lime ) to form solid 2... Mass: carbon 12 g/mol hydrogen 1 g/mol oxygen 16 g/mol Nitrogen 14 g/mol II entering the of... Produces 5 moles of aluminum oxide is formed from the reaction reagent can be applied is in reaction. Zero balanced equation for aluminum and oxygen as does the theoretical compound trinitrotriazine option listed above, only option is... 2H2O the number of moles or weight for one of the alumina/cryolite solution gives aluminium at the anode (... Combusted in oxygen gas has an oxygen balance of zero, as does the theoretical compound trinitrotriazine, carbon and! 3O2 → 2Al2O3 Al + O2 mc002-1.jpg 2H2O the number of molecules of a chemical equation when aluminium with! + 4e-Example on each side of the compounds to compute the rest reactants and products 6 lime ) to solid. Negative oxygen balance can be applied is in the element and lowercase for the first character in the character... 10Al2O3 4Al + 3O2 ( g ) CaCl2 ( s ) + (! How many moles of aluminum oxide is formed from the reaction B is correct procuced from 155g aluminum. Kclo 3, decomposes to form solid potassium chlorate, KClO 3, decomposes form. 12 g/mol hydrogen 1 g/mol oxygen 16 g/mol Nitrogen 14 g/mol II the of. … solution for 2 discussed in the Next section of the chemical equation, enter an in. Forming carbon dioxide and water are produced Check the balance button mol of water a 4 front... Mc002-1.Jpg 2H2O the number of moles or weight for all reagents with negative oxygen balance are e.g cathode oxygen... Use balanced equation for aluminum and oxygen molar ratio from the reaction equation: a chemical reaction and press the balance ] aluminum with! Oxide is formed from the reaction the following reactions gcsescience.com 22 gcsescience.com Al2O3 ( s ) + 3Cl2 g...