A. In mass is due to the fact that oxygen from the air has combined with the magnesium to make magnesium oxide mgo. How many moles of Mg are needed to give 6 moles of Mgo? How To Balance Equations. Larvae of -----metamorphose into adults after settling down at bottom of the sea ... Get the Brainly App The chemical formula for magnesium oxide is MgO, not MgO2. 2 Mg(s) + O2(g) → 2 MgO(s) As magnesium (Mg) has a valency of +2, and oxygen (O) has a valency of -2, the ratio would be 1:1, and magnesium oxide would be represented as MgO. When magnesium oxide is burnt in air, an oxidation of the magnesium and reduction of some of the oxygen in the air occurs according to the equation:2 Mg + O2 -> 2 MgO. Balance the equation. MgO. 2 See answers Meww Meww 2Mg + O2 ==> 2MgO Balanced :) yuvi309 yuvi309 2MG + O2 = 2MGO, NOW IT IS BALANCED EQUATION MARK AS BRILLIANT PLZZ. For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but PhC2H5 + O2 = PhOH + CO2 + H2O will; Compound states [like (s) (aq) or (g)] are not required. 2 C.6 D. 4 3. Mg+ O2. Hence balanced. Magnesium has an oxidation number of +2, while oxygen has an oxidation number of -2. 1. 3 C. 1 D. 2 4. pratyushpandey3352 pratyushpandey3352 ... Get the Brainly App Download iOS App How many moles of oxygen molecules reacted to 2 moles of Mg? Lexi is balancing equations. 2Mg + O2 → 2MgO. Equation 1 eqn 1. I hope this was helpful. In many cases a complete equation … The balanced chemical equation is: Mg_((s))+ 2HCl_((aq))rarrMgCl_(2(aq)) + H_(2(g) The reaction between magnesium and hydrochloric acid combine to form a salt of magnesium chloride and release hydrogen gas. If helpfull pls brainliest me . MG+O2=MGO 2 See answers aadhya1234 aadhya1234 Answer: Explanation: Here is ur answer mate . If you do not know what products are enter reagents only and click 'Balance'. 2mg o2 2mgo however as there are traces of moisture in the air a small amount gets. In any chemical reaction, the quantities that are preserved are the A. number of moles and the volumes. For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will. Which explains how to balance the equation ZnSO4 + Li2CO3 → ZnCO3 + Li2SO4? 1 B. 2 C. 3 D. 6 2. 2Mg(s) + O2(g) --> 2MgO(s) ===== Follow up ===== I suppose we do need to point out that it is possible to have an unusual compound which does have the formula MgO2. Which balances the equation Mg + O2→ MgO? Balance chemical equation. New questions in Science. You can use parenthesis or brackets []. Mg + O2 MgO She starts wih 3.45 grams of magnesium and produces 5.65 grams of magnesium oxide. This single replacement reaction is a classic example of a metal reacting in an acid to release hydrogen gas. Calculate her theoretical yield of magnesium oxide with a stoichiometry calculation. A. How many moles of Oz is needed to form 2 moles of Mgo? 2Mg+O2=MgO. Read our article on how to balance chemical equations or ask for help in our chat. Hope it helped u . A. Use 3.45 grams of magnesium as a starting point and determine how many grams she should have produced in the reaction if she was flawless in her procedure. MG+O2=MGO. This equation isn't balanced we have to balance it Mg in reactant side is-1 Oxygen in reactant side is -2 Magnesium in product side is 1 Oxygen in product side is 1 Now we have to balance it Leavings u down to my answer Right in my picture 3:16 Compound states [like (s) (aq) or (g)] are not required. She is finding one equation to be very difficult to balance. 6 B. Burning magnesium in air means burning it with the oxygen in the air. 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