Most of the important reactions of alkenes involve the electrons in the component of the double bond because these are the electrons that are farthest from the positively charged nuclei and therefore the most weakly held. The mass of deuterium, D, is 2.014 g/mol. For the reaction: CH4 (2) + O2 (2 -> CO2 (@ + H2O () 4.56102 mol FeBr3, Calculate the mass, in grams, of each of the following. What volume of CO2 Forms if 12.0 g of CH4, A:4) 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? 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? , dropped out or were lost to follow-up and how many participants were evaluated for the study end points? b q a fmg yxrz. 2 1 CK Chemistry You may round atomic masses to one decimal place. To calculate a) The mass of, Q:4) Given these reactants and products: 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. Wiki User. The total expenditure of energy in the world each year is about 3 10 17 kJ. 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? how many stomach compartments are in a ruminant animal? 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 why?, Which type of study benefits from the publication of a flow diagram showing the flow of participants in the study, including when and why participants In combustion reaction, definitely oxygen must be "one of the reactants".. By balancing the above equation. In the formation of C2H2, the carbon atom needs extra electrons to form 4 bonds with hydrogen and other carbon atoms. FeSO4, Calculate the molar mass of each of the following compounds. It is denoted, Q:What volume ofCO2(g) at STP is produced if 1.42 L of 0.0036 M HCl reacts with an excess ofCaCO3, A:Given :- Answer (1 of 2): Balanced equation for the reaction: 2CHOH + 3O 2CO + 4HO At the same conditions, volume ratio CHOH : O = 2 : 3 Volume of CHOH burned = 3 L Volume of O required = (3 L) (3/2) = 4.5 L ==== OR: (3 L CHOH) (3 L O / 2 L CHOH) = 4.5 L O How do I get the chemical equation of aniline to phenylisocyanide? 3NH4ClO4 + 3Al -----> 3NO + Al2O3+ 6H2O + AlCl3(g) Medium Solution Verified by Toppr Molecular weight of ethane is 30 g/mol and of CO 2 is 44 g/mol, O 2 is 32 g/mol You may round atomic masses to one decimal place. Get access to millions of step-by-step textbook and homework solutions, Send experts your homework questions or start a chat with a tutor, Check for plagiarism and create citations in seconds, Get instant explanations to difficult math equations. Mass: Cu 63.55 Cl 35.45 H 1.008 O 16.00 12 Methane burns in oxygen to form carbon dioxide and water. As a class, alkanes are relatively unreactive substances and undergo only a few reactions. Science Chemistry Ethane gas, C,H,, burns in air (actually the oxygen in the air) to form carbon dioxide and water. Assume that both gases are measured at the same temperature and pressure Express your answer with the appropriate units. V = volume 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. Assume dry air with CO2 removed is 20.96% (by volume) oxygen. F2+AlCl3AlF3+Cl2. ThoughtCo, Aug. 28, 2020, thoughtco.com/combustion-reactions-604030. (ii) Also, 2 V(volumes) of ethane reacts with 7 V of oxygen. 3) Determine the percent yield if 310 g of carbon dioxide was recovered. (a) Develop a choice table for interest rates from 0% to 25%. This site is using cookies under cookie policy . Ethane gas, C,H,, burns in air (actually the oxygen in the air) to form carbon dioxide and water. You may round atomic masses to one decimal place. Determine the density of argon. Heavy water is water with the isotope deuterium in place of ordinary hydrogen, and its formula is D2O. As a result of his experimentation, he discovered a method for indirectly measuring the number of atoms involved in a reaction. 3.83 For the reaction of nitrogen, N2, and hydrogen, H2, to form ammonia, NH3, a student is attempting to draw a particulate diagram, as shown below. 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. Answer Bank Identification::: Supplier's details : The following results were obtained: How you can determine which reaction has the higher atom economy without doing the calculations above. 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, The same reaction can be used to produce heavy ammonia, ND3(g), according to the equation Molar mass = 16 gm/mol Name any four of them.. What volume in liters of 5.75102 M KH2AsO4 contains 1.00 g KH2AsO4? The equation is 2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(g) Part A In the above equation, how many liters of oxygen (O2) are required to burn 8.0 L of ethane (C2H6) gas? Explanation: When ethane reacts with "oxygen" to form "carbon dioxide and water".This reaction is called combustion reaction. Combustion is an exothermic reaction, meaning it releases heat, but sometimes the reaction proceeds so slowly that the change in temperature is not noticeable. 3.112 In one experiment, the burning of 0.614 g of sulfur produced 1.246 g of sulfur dioxide as its only product. What mass in grams of solute is needed to prepare 45.0 mL of 1.65 M C6H12O6? Find answers to questions asked by students like you. Molar mas of KClO3 = 122.5 g/mol The remaining oxygen would be : Enter the name of the gas followed by its volume in liters to the nearest whole number, separated by a comma. 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. Best Answer. An industrial process known as isomerization employs an aluminum chloride (AlCl3) catalyst to convert unbranched alkanes to their branched-chain isomers. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. How do you write the balanced chemical equation for this reaction? 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. How many atoms of C does the notation 6 Fe(CH3COO)3 indicate? In the above equation, how many liters of oxygen (O2) are required to burn 4.0 L of ethane (C2H6) gas? 2003-2023 Chegg Inc. All rights reserved. n = moles of gas = mass/molar mass A student needs to prepare some CO2 and intends to use to following reaction, A:Given, C6H12O6(s) + 6 O2(g) 6 CO2(g) + 6 H2O(l), Q:Gas Laws Stoichiometry Experts are tested by Chegg as specialists in their subject area. 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? *, 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 the percent by volume concentration of acetone = *Response times may vary by subject and question complexity. the percent by volume concentration of water = why only these? (s), A:Given reaction:- In the reaction, 4 L of ethane and 14 L of oxygen burn to completion. 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. SAFETY DATA SHEET GHS product identifier Other means of identification Product type Section 1. We also share information about your use of our 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, 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 2 mole The previous reaction has been carried out for many centuries and is one of the oldest manufacturing processes. , water vapours donot behave ideally at 273k. Overlap of two p orbitals, suitably aligned and on adjacent carbons, gives two bonds. Weight of NH3= 3.25 gm ii. You have packing boxes that measure 24 inches by 24 inches by 18 inches. Molarity of HCl solution = 0.0036 mol/L Shane and oxygen is the reactants of the chemical reaction while carbon dioxide and water is the products. Retrieved from https://www.thoughtco.com/combustion-reactions-604030. 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 most important industrial organic chemical reaction in terms of its scale and economic impact is the dehydrogenation of ethane (obtained from natural gas) to form ethylene and hydrogen (see below Alkenes and alkynes: Natural occurrence and Synthesis). You may be surprised? If you cut a perfect cube, what is the length of the edge of the cube? Please answer quickly. a) Balance the equation;, A:Given reaction, 3 NH.CIO. C2H4+H2OC2H5OH Calculate the number of molecules in 3.00 moles H2S. A 6.00 %% (m/v) NaCl solution contains 49.9 g of NaCl. View Available Hint(s) Gas, volume. Using 80.0, Q:Lithium reacts with nitrogen gas according to the following reaction: .750 mol of sodium hydroxide in 1.00 L of solution When balancing equations, which numbers are you allowed to change? Reduction as well as, Q:1. 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 . How does the use of hydrocarbons affect global warming and climate change. . If the density of the aluminum crystal is 2.70 g/cm3, what is the experimental value of Avogadro's number? How can this be written as a conversion factor? So, 300 cc of ethane would give 600 cc of carbon dioxide. Ethane(a minor constituent of natural gas) burns in oxygen to form carbon dioxide and water. NumberofmolesofCH4=GivenmassMolar, Q:Methyl alcohol (CH3OH) is made by reacting carbon monoxide with H2. (b) Assume the bottle of CaCl2 2 H2O was mislabeled; it actually contained something different. You may round atomic masses to one decimal place. (1) ---> Ca(OH)2 (aq) + H2 (g) 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 . This site is using cookies under cookie policy . What is the correct balanced chemical equation for this reaction? write balanced chemical equation for the reactions and identify its type. Feo + If not, what was the error the student made? On the basis of this calculation, what should they do next? Grades of gasoline are rated by comparing their tendency toward preignition or . How many grams (of mass m) of glucose are in 175 mL of a 5.50% (m/v) glucose solution? Upon decomposition, this product emits carbon monoxide, carbon dioxide and/or low molecular weight hydrocarbons. 4 NH, (aq) + 30,(g) 2 N,(g) + 6, A:Given-> would be produced if 1522 g of, Q:1) Hexane combusts according to the following balanced equation: You may round atomic masses to one decimal place. which can dehydrogenate ethane to form ethylene. 2 NH, (g) + 3 CI_(g) ---> N2(g) + 6 HCI(g) The conversion of high-molecular-weight alkanes to lower ones is called cracking. Ca(H2PO4)2, Calculate the molar mass of each of the following compounds. (ii) Also, 2 V(volumes) of ethane reacts with 7 V of oxygen. Ethane burns in air to form carbon dioxide and water. 1 mL = 0.001 L Combustion Reactions in Chemistry. What, Q:You want to prepare some oxygen gas in the laboratory using the following reaction:, Q:How many liters of hydrogen gas would be produced by the complete reaction of 2.93g of Al at STP, Q:How many grams of Al were reacted with excess HCl if 5.06 L of hydrogen gas were collected at STP in, A:Hi, since you have posted multiple questions, we will answer the first question for you. Calculate the number of moles of H2O (answer must be expressed to 5 decimal places). P = pressure Hydrogen sulfide burns in oxygen to form sulfur dioxide and water vapor. 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. Two general chemistry students working together in the lab weigh out 0.832 g of CaCl2 2 H2O into a crucible. Each carbon has two p orbitals, the axes of which are perpendicular to each other. 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)? oxygen carbon dioxide water ethane Question 2 0.5 pts When ethane, C2H6, burns in oxygen, carbon dioxide and water are formed. There are 342 g of sucrose in 1.00 mol of sucrose. ThoughtCo. Helmenstine, Anne Marie, Ph.D. "Combustion Reactions in Chemistry." Consider the following equation. 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: The conversion of glucose is sustainable as it is made from biomass. 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. V2O5, Calculate the molar mass of each of the following compounds. The density of a mixture of gases may be calculated by summing the products of the density of each gas and the fractional volume of space occupied by that gas. 3 NHACIO. 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. 30.07 g/mol (molar mass) of ethane, Q:thesis of hydrogen and nitrogen. 300 cc of ethane is 2 V, so oxygen required for 300 cc of ethane is . 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)? (c) Heat the crucible again, and then reweigh it. The coefficients of reactants and products can be used to compare the volume of each species involved in the chemical reaction. We reviewed their content and use your feedback to keep the quality high. Here are several examples of balanced equations for combustion reactions. Kindly, Q:Ammonia, NH , reacts with oxygen to form nitrogen gas and water. In the case of acetylene, the molecule itself is linear with bonds between the two carbons and to each hydrogen. Number of moles of Al = (2 x number of, Q:What volume of O2 is produced at STP when 89.7g of Al2O3 decomposes ? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Express your answer to one. Assume that both gases are measured at the same temperature and pressure Express your answer with the appropriate units. 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, Why is balancing chemical equations important? highest molarity. As is true for all hydrocarbons, alkanes burn in air to produce carbon dioxide (CO2) and water (H2O) and release heat. The halogens chlorine (Cl2) and bromine (Br2) react with alkanes and cycloalkanes by replacing one or more hydrogens with a halogen. Mass of ammonium, Q:Hydrogen peroxide (H2O2) decomposes over time according to the following equation: Inhalation Suffocation (asphyxiant) hazard - if allowed to accumulate to concentrations that reduce oxygen There are different types of chemical reaction which includes COMBUSTION REACTION that is mostly seen in hydrocarbons. Assume that both gases are. If 1250 cc of oxygen is burnt with 300 cc of ethane. You can specify conditions of storing and accessing cookies in your browser. Combustion doesn't always result in fire, but when it does, a flame is a characteristic indicator of the reaction. Alkenes (also called olefins) and alkynes (also called acetylenes) belong to the class of unsaturated aliphatic hydrocarbons. (NH4)2Cr2O7, Calculate the mass, in grams, of each of the following. The combustion of ethane: 2 C2H6 (g) + 7 O2 (g) ---> 4 CO2 (g) + 6 H2O (g) At the same temperature and pressure, what is the maximum volume in liters of carbon dioxide that can be . The generally accepted bonding model for alkenes views the double bond as being composed of a (sigma) component and a (pi) component. This reaction is called combustion reaction. C 2 H 6 + O 2 CO + H 2 O. Ethane CH4 burns in oxygen gas to form water and carbon dioxide. The moles of reactants and, Q:What volume of O is produced at STP when 89.7 g of AlO decomposes? (8) + 702(8) 4CO2(g) + 6H2O(8) What are the products in the equation (select all that apply)? 68.03 g of hydrogen peroxide (H2O2) decompose to form 36.03 g of water (H2O) and 32.00 g of oxygen (O2). Complete the following table of pressure conversions. 2C2H6(g)+7O2(g)4CO2(g)+6H2O(g)2C2H6(g)+7O2(g)4CO2(g)+6H2O(g) In the case of ethylene, each carbon is sp2 hybridized, and each is bonded to two hydrogens and the other carbon by bonds. [9, 12, 13] Platinum-based catalysts have long been used for the . Li3N(s)+3H2O(l)NH3(g)+3LiOH(aq) 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. What is the percent by volume concentration of 17.0 mL of water in 604 mL of an ethanol-water solution? Calculate: (i) the volume of CO 2 formed. 1 mole O ____ #KClO_3 -># ____ #KCl +# ____ #O_2#. Inorganic combustion reactions might not form all of those products but remain recognizable by the reaction of oxygen. In a Balanced Symbol Equation: 4C2H6 + 12O2 = 6CO + 12H2O. (The density of sodium is 0.97 g/cm3.). 3) Determine the percent yield if 310 g of carbon dioxide was recovered. Ethane burns in air to form carbon dioxide and water. Today, more than 80% of this energy is provided by the combustion of fossil fuels: oil, coal, and natural gas (The sources of the energy consumed in the United States in 2009 are shown in Figure \(\PageIndex{2}\)) but as Table \(\PageIndex{1}\) from the Wikipedia shows, energy usage is a complex issue. A sample of potassium chlorate is heated, and decomposes according to the balanced 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. Chemistry Chemical Reactions Balancing Chemical Equations 1 Answer Trevor Ryan. 8.00 mol CaCO3, Calculate the mass, in grams, of each of the following. See all questions in Balancing Chemical Equations. C2H6(g) + 7/2O2(g) 2CO2(g) + 3H2O(g) (8) 70() 400 (8) 6H 0(0) + + 2 2 2 2 1C, H. (g) + 3.502() + 2C02(g) + 3H2O(g) So you would use 3.5 L of the 7 L in the flask and have 3.5 L of the 7 L remaining as excess oxygen unburned after all the ethane has reacted Or you would need an additional L of ethane to burn all the available oxygen Part C 2C, H. (b) + 70,(g) + 4CO2(g) + 6H2O(g) In the equation, if 14 L of ethano (CH) 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? In an experiment, you need 0.125 mol of sodium metal. Rank the following solutions in increasing order of molarity, overlapping solutions with equivalent molarity. 2 moles KCIO, Ethane burns in air to form carbon dioxide and water. When this equation is balanced . 3 moles 0 The correct balanced equation for the combustion of methane is CH4 + 2O2 CO2 + 2H2O One mole of methane reacts with two moles of oxygen gas to form one mole of carbon dioxide and two moles of water. Solid copper(II) chloride forms a hydrate of formula CuCl2xH2O. Consider a 20.0 % (m/v) solution. Experts are tested by Chegg as specialists in their subject area. A sample of ethane was . Describe how the data already obtained could be used to calculate the initial mass of the sulfur burned in the second experiment. In a more recent development, ethanol can be prepared by reacting ethylene (found in petroleum) with water: Answer: From the question, the equation which is 2C2H6 + 7O2 --> 4CO2 + 6H2O has the products as 4CO2 + 6H2O( which is carbon dioxide and water). You'll get a detailed solution from a subject matter expert that helps you learn core concepts. A proposed new specification is expected to be more resistant to wear. 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. 1) What mass of carbon dioxide would be produced if 2.50 x 10 24 molecules of C,H, reacts with .500 mol of sucrose in 2.00 L of solution Write the balanced equation for each of the two reactions above. When loo grams of solid calcium carbonate is heated, 44 grams of carbon dioxide and 56 grams of calcium oxide are produced. Express your answer with the appropriate units. Examples of Chemical Reactions in Everyday Life, The Properties and Applications of Platinum, How to Make Water From Hydrogen and Oxygen, Candle Science Trick to Extinguish Fire with Carbon Dioxide, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College, Combustion of butane (commonly found in lighters), Combustion of methanol (also known as wood alcohol), Combustion of propane (used in gas grills, fireplaces, and some cookstoves). Hydrogen sulfide bums in oxygen to form sulfur dioxide and water vapor. Sodium phosphate and calcium chloride react to form How can I balance this equation? What are the three broad groups that facial muscles can be split into? Weight of O2= 4.88 gm Volume of CO = 30.0 L In a second experiment run to verify the outcome of the first, a sample was burned and 0.813 g of sulfur dioxide was obtained, but the student running the experiment forgot to determine the initial mass of sulfur burned. Did the student draw a correct representation of the reaction? Methane burns in oxygen to form carbon dioxide and water vapor. 32.00 g 0 In a combustion reaction, butanol (C4H9OH) is burned in the presence of oxygen (O2), producing carbon dioxide (CO2) and water (H2O). This is a combustion reaction of an alkane with oxygen. Ethane burns in air to form carbon dioxide and water. 2 C6H14(C) + 19 O2(g) The other product is CO2. If you make any approximations or assumptions, please list them. Mass of Hydrogen = 2.5g oxygen carbon dioxide water ethane Question 2 0.5 pts When ethane, C2H6, burns . Your question is solved by a Subject Matter Expert. 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. 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. C6H12O6C2H5OH+CO2 Jan 9, 2016 2C2H 6 + 7O2 4CO2 + 6H 2O Explanation: This is a combustion reaction of an alkane with oxygen. It hits the ground after an interval of 4.10 s. What is the potential difference between the starting point and the top point of the trajectory? The triple bond of an alkyne consists of one and two components linking two sp hybridized carbons. The chlorinated derivatives of methane (CH3Cl, CH2Cl2, CHCl3, and CCl4) are useful industrially and are prepared by various methods, including the reaction of methane with chlorine at temperatures on the order of 450 C (840 F). 2C,H6) +702) 4CO) + 6H20) This led him to conduct a series of experiments to determine if other compounds also combined in whole number ratios. 345 L of O, at STP? The hydrogen produced is employed in the Haber-Bosch process for the preparation of ammonia from nitrogen. Assume that the volume and temperature are held constant. Which best describes a diagram of evolution? 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? Ethane burns in air to form carbon dioxide and water. 2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(g)2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(g) Approximately a quarter is made by kelp and other marine macro-plants and a quarter is made by all terrestrial sources combined. 1. Q:Rusting of iron involves a chemienl neactioN which is a combination of: * 12 CO2(g) +. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. In one such application, butane is isomerized to 2-methylpropane for use as a starting material in the preparation of 2,2,4-trimethylpentane (isooctane), which is a component of high-octane gasoline. Chemistry questions and answers. It's important to remember that combustion reactions are easy to recognize because the products always contain carbon dioxide and water. 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. The balanced.