The equation is 2CH(E) +70,($) - 400,(E) + 6H0() Part A In the above equation, how many ters of oxygen (Os) are required to burn 6.0 Lofthane (CH) as? 2 C6H14(C) + 19 O2(g) Ethane burns in air to form carbon dioxide and water. a) Balance the equation;, A:Given reaction, Good signs that you're dealing with a combustion reaction include the presence of oxygen as a reactant and carbon dioxide, water, and heat as products. Calculate how many grams of heavy water are required to produce 140.0 mg ND3(g). On planet Tehar, the free-fall acceleration is the same as that on the Earth, but there is also a strong downward electric field that is uniform close to the planets surface. You have a mole of ping pong balls and want to ship them to a near-by town. (a) Develop a choice table for interest rates from 0% to 25%. If you mixed 9.71 mol Cl2O with 511 grams NH3, which, A:Consider the reaction, The balanced chemical equation is written as: 2CH. Given : Mass of Fe3O4, Q:3Cl2O (g) + 10NH3 --> 6NH4Cl + 2N2 (g) + 3H2O. The triple bond of an alkyne consists of one and two components linking two sp hybridized carbons. *, A container of gas has a pressure of 745 mm Hg and room temperature is 18 C. How does the temperature of the system change when the pressure is change Li3N(s)+3H2O(l)NH3(g)+3LiOH(aq) A combustion reaction is a major class of chemical reactions, commonly referred to as "burning." In the most general sense, combustion involves a reaction between any combustible material and an oxidizer to form an oxidized product. First week only $4.99! 3NH4ClO4 + 3Al -----> 3NO + Al2O3+ 6H2O + AlCl3(g) Explanation: When ethane reacts with "oxygen" to form "carbon dioxide and water".This reaction is called combustion reaction. Overlap of two p orbitals, suitably aligned and on adjacent carbons, gives two bonds. How many moles of carbon dioxide, CO2, are produced if the reaction conditions, Q:5880 grams of paraffin wax, C25H52 are burmed in excess oxygen at 520C in a rigid 150 Liter, A:Find the balanced chemical equation and thus calculate the number of moles of CO2 and H2O formed., Q:Airbags used in automobiles are inflated with nitrogen gas produced from the reaction of sodium, Q:ven the reaction, Therefore, if two milion SO, molecules combine with one milion O molecules, we got two milion SO, molecules Also note that the coefficients of the molecules in the equation are comparable to the wall whole number ratios, that is, 2:12 Volume of oxygen Value Units Submit Part B 2C, H. (8) +70,() 4CO3(6) + CHOC) in the equation above, what volume of ethane (CH) Intors is required to form 20 L of carbon dioxide (C0,12 Express your answer with the appropriate units View Available Hint() 2 H Pearson (b) Assume the bottle of CaCl2 2 H2O was mislabeled; it actually contained something different. It decides, Q:Fe304 + H, --> Limiting reagent is, Q:How many moles of carbon dioxide, CO2, are produced if the reaction conditions are 325 K, 1.6 atm,, A:We have given that would be produced if 1522 g of, Q:1) Hexane combusts according to the following balanced equation: 2) How many grams of excess reactant remains? Using the current specifications, resurfacing a road will cost $1.5M initially, need$120K in annual maintenance, and need to be resurfaced every 10 years. Gas. Assume that both gases are measured at the same temperature and pressure. Which best describes a diagram of evolution? In the case of ethylene, each carbon is sp2 hybridized, and each is bonded to two hydrogens and the other carbon by bonds. oxygen water carbon dioxide ethane. ii. Ethane CH4 burns in oxygen gas to form water and carbon dioxide. Combustion Reactions in Chemistry. (The density of sodium is 0.97 g/cm3.). When ethane, C2H6, burns in oxygen, carbon dioxide and water are formed. Can you write a balanced equation for BCl3 (g)+H2O (l)-------> H3BO3 (s)+HCl (g)? It usually occurs when a hydrocarbon reacts with oxygen to produce carbon dioxide and water. sc.7.L.15.2. oxygen carbon dioxide water ethane Question 2 0.5 pts When ethane, C2H6, burns in oxygen, carbon dioxide and water are formed. How does the use of hydrocarbons affect global warming and climate change. Using 80.0, A:The answer to the first question is given as -, Q:Ammonia, NH,, reacts with oxygen to form nitrogen gas and water. Ethane is an example of a saturated hydrocarbon ( that is all the four bonds of carbon are single bonds) which undergoes combustion reaction with oxygen molecule. Wiki User. Methane burns in oxygen to form carbon dioxide and water vapor. Balance the chemical equation. The second most important constituent of natural gas, it also occurs dissolved in petroleum oils and as a by-product of oil refinery operations and of . How many liters of H, at STP are required to react with 2.3 g of Fe,0, to, A:The reaction taking place is given as, 3 moles 0 Mass of KClO3 = 0.728 g It's prone to limiting reactants the same as other processes. which can dehydrogenate ethane to form ethylene. Grades of gasoline are rated by comparing their tendency toward preignition or knocking to reference blends of heptane and 2,2,4-trimethylpentane and assigning octane numbers. Given the results from parts above, select one of the two methods as the better candidate overall for preparing ethanol. 1) What mass of Fe,O3) 68.03 g of hydrogen peroxide (H2O2) decompose to form 36.03 g of water (H2O) and 32.00 g of oxygen (O2). As is true for all hydrocarbons, alkanes burn in air to produce carbon dioxide (CO2) and water (H2O) and release heat. , what is the mass percent of water in plaster of paris, Macmill 1 mole KCI (s), A:Given reaction:- When ethane reacts with "oxygen" to form "carbon dioxide and water". What is the percent by volume concentration of 80.7 mL of acetone in 1550 mL of an acetone-water solution? When carbon is burned in air, it reacts with oxygen to form carbon dioxide. Living By Chemistry: First Edition Textbook. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. 17.6 g MoO3, Calculate the amount, in moles, of each of the following. Additionally, each carbon has a half-filled p orbital, the axis of which is perpendicular to the plane of the bonds. How many moles of platinum are there in the cone? We know that : PV = nRT or, n, Q:MassMass & MassVol : Zinc citrate is used in toothpaste it is synthesized from zinc carbonate and, A:The balance chemical equation for reaction between zinc carbonate and citrate is as follow, Q:Given the equation C2H6(g) + O2(g) CO2(g) + H2O(g) (not balanced), determine the number of liters, A:The balanced equation is, answer choices carbon (C) oxygen (O2) water (H2O) ethane (C2H6) Question 2 30 seconds Q. Zinc and hydrochloric acid are combined in a test tube. (s), Q:Suppose 2.80% of 480 g of PCls (208.2 g/mol) initially present in a 7.00 L reaction vessel at 300C, Q:4) The other product is CO2. 1. On land, the biggest producer of oxygen are the tropical rain forests (40.8%) followed by tropical grasslands (31%) followed by croplands (14.8%) and all other sources. (b) If the highway department's interest rate is 6%, which specification is preferred? How, Q:In the formation of smog, nitrogen and oxygen gas react to form nitrogen dioxide:, A:From the reaction it is clear that 1 mole N2(g) gives 2 moles NO2(g). 2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(g)2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(g) 2 NH3(g) + 3 CuO(s) ->N2(g) + 3Cu(s) + 3H2O(g) Here are several examples of balanced equations for combustion reactions. 3 NH.CIO. Mass of CH4 = 12 gms Molarity of HCl solution = 0.0036 mol/L What Happens to Candle Wax When a Candle Burns. Science Chemistry Ethane burns in air to form carbon dioxide and water. Although the reactions are exothermic, a source of energy such as ultraviolet light or high temperature is required to initiate the reaction, as, for example, in the chlorination of cyclobutane. 8.00 mol CaCO3, Calculate the mass, in grams, of each of the following. You may round atomic masses to one decimal place. 2 C2H6 + 7 O2 ------> 4 CO2 + 6 H2O If 401. mm hg of ethane is burned in 452. mm of Hg of oxygen, what pressure of carbon dioxide could be produced? the percent by volume concentration of acetone = Assume that both gases are measured at the same temperature and pressure. Best Answer. Weight of O2= 4.88 gm Ethane burns in air to form carbon dioxide and water. How many moles of H2O are produced when 0.392 mol of octane is burned? The moles of reactants and, Q:What volume of O is produced at STP when 89.7 g of AlO decomposes? chemical, A:The given chemical equation is: Why do chemical equations need to be balanced? Volume, Q:What volume of O is produced at STP when 78.9 g of AlO decomposes? Ethane burns in air to form carbon dioxide and water. What volume of CO2 Forms if 12.0 g of CH4, A:4) Ethane (C2H6) burns with oxygen to produce carbon dioxide and water. mass of crucible = 16.221 g mass of crucible and hydrated copper(II) chloride = 18.360 g mass of crucible and anhydrous copper(II) chloride = 17.917 g 2 1 CK Chemistry This site is using cookies under cookie policy . The remaining oxygen would be : So, 300 cc of ethane would give 600 cc of carbon dioxide. In addition to being widely used as an industrial solvent, a gasoline additive, and an alternative fuel, it is well known as the alcohol in alcoholic beverages. Weight of NH3= 3.25 gm Starting with the unbalanced equation for the combustion of butanol, Starting with the partially balanced equation,C4H9OH(g)+O2(g)?CO2(g)+5H2O(l), Starting with the partially balanced equation,C4H9OH(g)+?O2(g)4CO2(g)+5H2O(l). You may round atomic masses to one decimal place. This site is using cookies under cookie policy . Reduction as well as, Q:1. (ii) Also, 2 V(volumes) of ethane reacts with 7 V of oxygen. Acetylene has a linear HCCH geometry, and its carbon-carbon bond distance (1.20 angstroms) is even shorter than that of ethylene. Ethane is an example of a saturated hydrocarbon ( that is all the four bonds of carbon are single bonds) which undergoes combustion reaction with oxygen molecule. Use bond energies to determine the heat of each reaction per mole of O2 (assume Lewis structures with zero fonnal charges; BE of S = O is 552 kJ/mol).. The combustion of 2,2,4-trimethylpentane is expressed by the following chemical equation: The fact that all hydrocarbon combustions are exothermic is responsible for their widespread use as fuels. Each carbon has two p orbitals, the axes of which are perpendicular to each other. The equation is 2C2H6 (g) + 7O2 (g) 4CO2 (g) + 6H2O (g) In the above equation, how many liters of oxygen (O2) are required to burn 4.0 L of ethane (C2H6) gas? Ca(H2PO4)2, Calculate the molar mass of each of the following compounds. It is exothermic (#DeltaH<0#), and can be balanced in normal methods for balancing chemical equations ie ensuring that the total number of atoms of each element is the same on both sides of the equation. Upon decomposition, this product emits carbon monoxide, carbon dioxide and/or low molecular weight hydrocarbons. 2(g) Alkenes are hydrocarbons that contain a carbon-carbon double bond, whereas alkynes have a carbon-carbon triple bond. 2C2H6(g)+7O2(g)4CO2(g)+6H2O(g)2C2H6(g)+7O2(g)4CO2(g)+6H2O(g) Starting with 2.5 g of H2 and, A:CO(g)+2H2(g)CH3OH(l)massofH2=2.5gmoles ofH2=2.5g2.016gmole1=1.24molesmassofCO=30L=3x, Q:what is the mass in grams of AL that were reacted with excess HCL if 6.60L of hydrogen gas were, A:Balanced chemical equation: Jan 9, 2016 2C2H 6 + 7O2 4CO2 + 6H 2O Explanation: This is a combustion reaction of an alkane with oxygen. This is a combustion reaction of an alkane with oxygen. Ethane gas, C,H,, burns in air (actually the oxygen in the air) to form carbon dioxide and water. Two general chemistry students working together in the lab weigh out 0.832 g of CaCl2 2 H2O into a crucible. n = moles of gas = mass/molar mass bond bond energy in kJ/mol 410 360 C-H C-O CEO O-H 0-0 O=0 805 460 146 496 What is the energy change for this reaction? Mass: Cu 63.55 Cl 35.45 H 1.008 O 16.00 Using volume relationships Volume relationships can also be used to determine how much leftover reagent will remain after a reaction runs to completion when one reagent is in excess. Find step-by-step Chemistry solutions and your answer to the following textbook question: Methane burns in oxygen to form carbon dioxide and water vapor. hydrocarbon + oxygen carbon dioxide + water. Two and three moles of carbon dioxide and water would be produced respectively for every one mole of ethane that burns in three and a half moles of oxygen gas. 11. ethane burns in the presence of oxygen to form carbon dioxide and water and release of energy in the form of heat and light. Combustion, like all chemical reactions, does not always proceed with 100% efficiency. The generally accepted bonding model for alkenes views the double bond as being composed of a (sigma) component and a (pi) component. Helmenstine, Anne Marie, Ph.D. "Combustion Reactions in Chemistry." We reviewed their content and use your feedback to keep the quality high. You can specify conditions of storing and accessing cookies in your browser. When this equation is balanced . A solid circular cone made of pure platinum (density =21.45g/cm3) has a diameter of 2.75 cm and a height of 3.00 inches. In the most general sense, combustion involves a reaction between any combustible material and an oxidizer to form an oxidized product. CH4(9) + 2O2(g) CO2(g) + 2H2O(1) The bond energies are shown in the table. While the activation energy must be overcome to initiate combustion (i.e.,using a lit match to light a fire), the heat from a flame may provide enough energy to make the reaction self-sustaining. 32.00 g 0 FeSO4, Calculate the molar mass of each of the following compounds. In combustion reaction, definitely oxygen must be "one of the reactants". .500 mol of sucrose in 2.00 L of solution Assume that both gases are measured at the same temperature and pressure. Kindly, Q:Ammonia, NH , reacts with oxygen to form nitrogen gas and water. Ethane bum in oxygen to form CO2 and H2O according to the equation: Ethane is supplied at the rate F with oxygen at the rate W and leaves the following products CO2, H2O, O2, C2H6 and H2 at the rate P. How many indepen, Ethane burns in oxygen according to the following equation: `2C_(2)H_(6)(g) + 7O_(2)(g) rarr 4CO_(2)(g) + 6H_(2)O(I)` `2.5 L` of ethane are burnal in. Chromium and magnesium oxide are formed by reacting 75 g of chromium (III) oxide and 59 kg of, Q:As we learned in Chapter 5 , an automobile airbag infl ates when NaN 3 is converted to Na and N 2, A:The given reaction is: Chemistry questions and answers. After heating the sample for a short time and allowing the crucible to cool, the students determine that the sample has a mass of 0.739 g. They then do a quick calculation. In this specific reaction, 2 L of ethane combines with 7 L of oxygen completely (without any traces of reactants remaining) to yield 4 L of carbon dioxide and 6 L of water. Assume that the volume and temperature are held constant. Toxicological information Information on likely routes of exposure Ingestion Not likely, due to the form of the product. The other product is CO2. 4F e, + 302) 2F e,O{) Ethane will burn in oxygen to form carbon dioxide and water according to the following balanced equation: From the equation, it means that for every one mole of ethane, three and a half moles of oxygen gas are required for complete combustion into carbon dioxide and water. Experts are tested by Chegg as specialists in their subject area. Ethane (C2H6) is one of many compounds that burns in oxygen to form carbon dioxide and water, as represented by the equation below. You can specify conditions of storing and accessing cookies in your browser, Ethane (C2H6) is one of many compounds that burns in oxygen to form carbon dioxide and water, as represented by the equation below. Express your answer with the appropriate units. Complete the following table of pressure conversions. 2C2H6 + 7O2 4CO2 + 6H2O. In the equation, if 14 L of ethane (C2H6) and 14 L of oxygen (O2) combined and burned to completion, which gas will be leftover after the reaction, and what is the volume of that gas remaining? How many moles of sucrose are there in 2.50 L of a 0.500 molar solution? You have packing boxes that measure 24 inches by 24 inches by 18 inches. (ii) Also, 2 V(volumes) of ethane reacts with 7 V of oxygen. This site is using cookies under cookie policy . A 6.00 %% (m/v) NaCl solution contains 49.9 g of NaCl. Moles of NaN3 = Mass/Molar mass = 100g/(65gmol-1) = 1.54, Q:Nitric acid is produced from nitrogen monoxide, which is in turn is prepared from ammonia by a, A:Limiting reagent is the reagent which is consumed in the chemical reaction completely. Pure heptane (assigned an octane number of 0) has poor ignition characteristics, whereas 2,2,4-trimethylpentane (assigned an octane number of 100) resists knocking even in high-compression engines. Determine the density of argon. In a Balanced Symbol Equation: 4C2H6 + 12O2 = 6CO + 12H2O. The balanced chemical equation is written as: 2C2H6(8) + 702(8) 4CO2(g) + 6H2O(8) What are the reactants in the equation (select all that apply)? This reaction is called combustion reaction. Inhalation Suffocation (asphyxiant) hazard - if allowed to accumulate to concentrations that reduce oxygen View Available Hinte) u Joseph. a) What mass of, A:Given reaction is 2 NH3(g)+ 3 CuO(s) N2(g) + 3Cu(s) + 3H2O(g). Ethane (C2H6) is one of many compounds that burns in oxygen to form carbon dioxide and water, as represented by the equation. 1) What mass of carbon dioxide would be produced if 2.50 x 10 24 molecules of C,H, reacts with How many boxes do you need to pack up all the ping pong balls? Given that, If not, what was the error the student made? Grades of gasoline are rated by comparing their tendency toward preignition or . 2Al + 6 HCl =2 AlCl3 + 3H2 You'll get a detailed solution from a subject matter expert that helps you learn core concepts. In the case of acetylene, the molecule itself is linear with bonds between the two carbons and to each hydrogen. When loo grams of solid calcium carbonate is heated, 44 grams of carbon dioxide and 56 grams of calcium oxide are produced. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. 2C,H6) +702) 4CO) + 6H,0) 1) What mass of carbon dioxide would be produced if 2.50 x 10 24 molecules of C,H, reacts with 345 L of O, at STP? The combustion of 2,2,4-trimethylpentane is expressed by the following chemical equation: The fact that all hydrocarbon combustions are exothermic is responsible for their widespread use as fuels. 3.112 In one experiment, the burning of 0.614 g of sulfur produced 1.246 g of sulfur dioxide as its only product. (i) So, according to above equation, 2 V (volume) ofethane reacts to give 4 V of carbon dioxide. CaH2(s)+H2O(l)Ca(OH)2(aq)+H2(g), Q:1. 20.8 g 0 x On the basis of this calculation, what should they do next? Ethylene is a planar molecule with a carbon-carbon double bond length (1.34 angstroms) that is significantly shorter than the corresponding single bond length (1.53 angstroms) in ethane. 3) Determine the percent yield if 310 g of carbon dioxide was recovered. In the reaction, 4 L of ethane and 14 L of oxygen burn to completion. Combustion doesn't always result in fire, but when it does, a flame is a characteristic indicator of the reaction. Flammable Gas Mixture: Acetylene / Carbon Dioxide / Carbon Monoxide / Ethane / Ethylene / Hexane / Hydrogen / Methane / N-Butane / N-Pentane / Nitrogen / Oxygen / Propane / Propylene Not available. Enter the name of the gas followed by its volume in liters to the nearest whole number, separated by a comma. Which substance is a product in this reaction? ____ #KClO_3 -># ____ #KCl +# ____ #O_2#. How many grams of ammonia gas can be formed from 13.7 L of hydrogen, A:the most popular and useful method for the synthesis of the ammonia is by HaberBosch process, Q:4. What mass in grams of solute is needed to prepare 8.50 L of 0.100 MM NaOH? If the bottle contains 1.39 L of solution, what is the volume (V) in milliliters of methyl alcohol? Hydronium ions are formed by the reaction between : (a) Sodium hydroxide and water(c) Hydrogen chloride gas and water (b) Calcium chloride and water ( How many moles of CO2 are produced when 7.28 mol of oxygen reacts with octane? 300 cc of ethane is 2 V, so oxygen required for 300 cc of ethane is. Ethane will burn in air( oxygen) to give off carbon dioxide and water as products of the chemical reaction. Ethane burns in oxygen to form CO2and H2O according to the equation : If 1250 cc of oxygen is burnt with 300 cc of ethane. Calculate the mass of butane needed to produce 56.5 g of carbon dioxide. Ethane burns in air to form carbon dioxide and water. The ethylene reaction is balanced as written and all atoms are converted to product. Ethane is structurally the simplest hydrocarbon that contains a single carbon-carbon bond. Assume that both gases are. An industrial process known as isomerization employs an aluminum chloride (AlCl3) catalyst to convert unbranched alkanes to their branched-chain isomers. 74.55 g KCI How many atoms of C does the notation 6 Fe(CH3COO)3 indicate? oxygen gas when heated (and in the, A:Now in the reaction as we are given with the reactants and the products, the balanced reaction is as, Q:2. Ethane burns in air to form carbon dioxide and water. Ammonium perchlorate reacts with aluminum according to the balanced reaction below. Ethane will burn in air ( oxygen) to give off carbon dioxide and water as products of the chemical reaction. Ethene (C2H4) is the simplest alkene and ethyne (C2H2) the simplest alkyne. C2H4+H2OC2H5OH 2 moles of hydrogen peroxide (H2O2) decompose to form two moles of water (H2O) and one mole of oxygen (O2). Sodium can be cut easily with a knife (Figure 2.5), so if you cut out a block of sodium, what should the volume of the block be in cubic centimeters? What is the balanced equation for the chemical reaction #Mg_3N_2+2H_2O -> Mg(OH)_2+NH_3#? How many atoms of Fe does the notation 6 Fe(CH3COO)3 indicate? The equation is 2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(g) a) In the above equation, how many liters of oxygen (O2) are required to burn 6.0 L of ethane (C2H6) gas? Assume that both gases are measured at the same temperature and pressure Express your answer with the appropriate units. The balanced chemical equation is written as: 2C2H6(8) + 702(8) 4CO2(g) + 6H2O(8) What are the reactants in the equation (select all that apply)? *Response times may vary by subject and question complexity. How many grams (of mass m) of glucose are in 175 mL of a 5.50% (m/v) glucose solution? Ethane gas, C,H,, burns in air (actually the oxygen in the air) to form carbon dioxide and water. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. The answer is 258 mm Hg carbonix dioxide, but I need an explanation Q:Rusting of iron involves a chemienl neactioN which is a combination of: * Alkenes (also called olefins) and alkynes (also called acetylenes) belong to the class of unsaturated aliphatic hydrocarbons. Answer Bank .500 mol of glucose in 1.00 L of solution Hint: Ethene or ethylene, a double bond containing carbon compound and member of the alkene family when subjected to the combustion breaks down into the carbon dioxide and water. Ethene is burnt in the presence of oxygen to form carbon dioxide , water and releases heat and light. The equation is Ethane burns in oxygen to form CO2 and H2O according to the equation : Ethane burns in oxygen to form CO2 and H2O according to the equation: 2C2 H 6 +7O2 ---> 4CO2+ 6H 2O, Ethane bums in oxygen to form CO2 and H2O according to the equation . Use bond energies (Table 9.2, p. 353) to determine the heat of each reaction per mole of O 2 (assume Lewis structures with zero formal charges; BE of S=O is 552 kJ/mol). BaO+O2BaO2, Balance the following equations. It usually occurs when a hydrocarbon reacts with oxygen to produce carbon dioxide and water. ThoughtCo, Aug. 28, 2020, thoughtco.com/combustion-reactions-604030. Solid copper(II) chloride forms a hydrate of formula CuCl2xH2O. how many stomach compartments are in a ruminant animal? The same reaction can be used to produce heavy ammonia, ND3(g), according to the equation 30.07 g/mol (molar mass) of ethane, Q:thesis of hydrogen and nitrogen. Practical yield = 15.6 g C2H6+O2 --> CO2+H2O answer choices carbon (C) oxygen (O 2) water (H 2 O) ethane (C 2 H 6) Question 3 30 seconds Q. What mass in grams of the magnetic oxide of iron (Fe3O4) can be made from 58.0 g of pure iron and an excess of oxygen? Ethane and Oxygen make: Ethane + Oxygen = Carbon Monoxide and Water. A proposed new specification is expected to be more resistant to wear. Mass of ammonium, Q:Hydrogen peroxide (H2O2) decomposes over time according to the following equation: Li3N(s)+3D2O(l)ND3(g)+3LiOD(aq) write balanced chemical equation for the reactions and identify its type. Number of moles of Al = (2 x number of, Q:What volume of O2 is produced at STP when 89.7g of Al2O3 decomposes ? How many atoms of H does the notation 6 Fe(CH3COO)3 indicate? (8) + 702(8) 4CO2(g) + 6H2O(8) What are the products in the equation (select all that apply)? When balancing equations, which numbers are you allowed to change? It's important to remember that combustion reactions are easy to recognize because the products always contain carbon dioxide and water.