(Assume 100% yield.) A conventional balanced equation with integer-only coefficients is derived by multiplying each coefficient by 2: $\ce{2C2H6 +7O2\rightarrow 6H2O + 4CO2}$ Finally with regard to balanced equations, recall that convention dictates use of the smallest whole-number coefficients. Use uppercase for the first character in the element and lowercase for the second character. Initially 2.87 mol of phosphorus and 3.86 mol of oxygen are combined. Answer (1 of 5): The chemical annotation for phosphorus is P, whilst for oxygen it is O. Write balanced chemical equations for the following reactions: (i) Sulphur reacts with concentrated Nitric acid. The same compound is formed in the reaction between red phosphorus and iodine, I 2, at 180°C. Phosphorus does not react with dilute non-oxidizing acids. Chemistry Chemistry: Principles and Reactions When solid phosphorus (P 4 ) reacts with oxygen gas, diphosphorus pentoxide is formed. Direct link to this balanced equation: Instructions on balancing chemical equations: Enter an equation of a chemical reaction and click 'Balance'. CH 4 (g) + O 2 (g) ˜˚ CO 2 (g) + H 2 O(g) (not balanced) To balance the equation, begin by counting atoms of elements that are combined with atoms of other elements and that appear only once on phosphorus combustion on air. Phosphorus burns in oxygen to produce tetraphosphorus decoxide Chemical Equations involving Binary Molecular Compounds: Every chemical reaction is represented by a corresponding chemical equation. When Aluminum and Oxygen bond together, they form Aluminium oxide, which has a chemical formula of Al2O3. White phosphorus, P 4, reacts with iodine, I 2, in carbon disulphide (CS 2) to form phosphorus(II) iodide, P 2 I 4. P 4 (s) + 4I 2 (g) → 2P 2 I 4 (g) Reaction of phosphorus with acids. (a) Write a balanced equation for the reaction. The two common methods for preparing orthophosphoric acid, H 3 PO 4, are either the reaction of a phosphate with sulfuric acid or the reaction of water with phosphorus(V) oxide. This reaction takes place at a temperature of 34-60°C. Oxygen has an oxidation number of -2. White phosphorus react with oxygen to produce phosphorus pentoxide. The content has also been presented in a slightly different order to CAPS in that the example reactions are first explored, and then the general reaction of metals with oxygen is explained, once learners have already seen example chemical equations. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored. The balanced equation is: 4P + 3O2 = 2P2O3. (ii) Phosphorus reacts with concentrated Nitric acid. To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. Phosphorus has an oxidation number of -3. 3.1 The reaction of iron with oxygen (1 hour) Therefore, the balanced equation for Phosphorus + Oxygen > Diphosphorus Pentoxide is P4 + 5 O2 > P4 O10.Phosphorus Phosphorus has the atomic number 15, and is a non-metal that belongs to the nitrogen group. Go to this web site and it will not only balance your equations for you but also tell you if they are impossible and why: The halogens and oxygen will oxidize phosphorus. The oxides are phosphorus(V) oxide, P 4 O 10, and phosphorus(III) oxide, P 4 O 6. balanced, a formula equation is a correctly written chemical equation. The balanced equation will appear above. The answer will appear below; Always use the upper case for the first character in the element name and the lower case for the second character. The molecular formula for the chemical compound diphosphorus pentoxide is P4 O10. Look again at the formula equation for the reaction of methane and oxygen. 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