how many liters of oxygen gas, O2, measured at STP are produced from the decomposition of 303 g of mercury (II) oxide, HgO? You end up with a test tube where mercury metal condenses on the top of the test tube. The yellow form can be obtained by precipitation of aqueous Hg 2+ with alkali. These reactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds. A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. how to balance HgO --> Hg + O2? Añade tu respuesta y gana puntos. The red form of HgO can be made by heating Hg in oxygen at roughly 350 °C, or by pyrolysis of Hg(NO 3) 2. 2HgO => 2Hg+O2 . the ratio between HgO and O2 is 2:1. moles HgO needed = 2 x 3.91 =7.82 As the Hg is already balanced, we need to multiply the reactant side HgO by 2 to makes two oxygen on this side. Balancing Strategies: To balance this equation it's probably easiest to begin by changing the coefficient in front of the HgO. The thermal decomposition of mercury(II) oxide to produce mercury and oxygen. Now on doing this, Hg gets unbalanced and so to balance this we need to multiply Hg on product side by 2. Source(s): balance hgo hg o2: https://biturl.im/qLOJA. 1 0. Balancing chemical equations. capitanme168 capitanme168 Respuesta: Sustituye grupos inmutables en los compuestos químicos para evitar la ambigüedad. En la ecuación química: HgO -----> Hg + O2 , los coeficientes estequiométricos necesarios para balancear esta ecuación es: A. La reacción de descomposición térmica del óxido de mercurio(II) . 1, 2,2 B. The difference in color is due to particle size, both forms have the same structure consisting of near linear O-Hg-O units linked in zigzag chains with an Hg-O-Hg angle of 108°. #HgO(s) rarr Hg(l) + 1/2O_2(g)# Because mercuric oxide is fairly stable, you have to heat it fairly fiercely. 2 HgO >> 2 Hg + O2. The balanced equation is: If we look at the given options then it … Answers: 3 on a question: Balance the following Equation Show your work. 2, 2,1 C. 2, 1,2 D. 2, 3,4 Ver respuesta ALE200522 está esperando tu ayuda. Dylan M. 1 decade ago. This is a combination reactions because the mercury (Hg) plus the oxygen gas (O2) come together to form the Mercury (II) oxide (MgO). Word equation: Mercury + Oxygen gas → Mercury (II) oxide. First balance the oxygen so put a 2 in front of the Hg on the left side... then that unbalances the Hg so you have to stick a two in front oh the Hg on the right . Chemical reaction. Get an answer to your question Balance these equations: HgO → Hg + O2 Na + HCl → H2 + NaCl K + Cl2 → KCl C2H6 + O2 → CO2 + H2O C5H12 + O2 → CO2 + H2O C6H14 + O2 → CO2 + H2O 0 0. Type of Chemical Reaction: For this reaction we have a combination reaction. ___HgO → ___Hg + O2 3. La ecuación de la reacción. Por ejemplo, la ecuación C6H5C2H5 + O2 = C6H5OH + CO2 + H2O no será equilibrado. 1.CaO + H2O → Ca(OH)2 2. moles O2 = 125 g / 32 g/mol =3.91. Of course, this reaction is performed in an efficient fume hood, because you don't want to … Oh ) 2 2 equation: mercury + Oxygen gas → mercury ( II ) oxide to produce and! Mercury and Oxygen 125 g / 32 g/mol =3.91 gas → mercury II. Test tube inmutables en los compuestos químicos para evitar la ambigüedad the test tube where mercury condenses. Involve an energy source such as heat, light, or electricity that apart. Hgo Hg O2: https: //biturl.im/qLOJA → Ca ( OH ) 2 2 1,2... 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