What is the chemical formula of ethanol burning in oxygen?

What is the chemical formula of ethanol burning in oxygen?

C2H5OH + 3O2 = = 3h20 + 2co2 (condition: ignition)
Or maybe we don't know what organic matter burns to produce? Most organic matter burns to produce water and carbon dioxide

The chemical formula of the substance is ()
A. C2H6OB. CH2OC. C3H8D. CH4

According to the law of conservation of mass, in a chemical reaction, the type, number and mass of atoms remain unchanged from the microscopic point of view; the type of elements and the total mass of substances remain unchanged from the macroscopic point of view; therefore, the carbon element in carbon dioxide comes from this substance, and the hydrogen element in water also comes from this substance; therefore, there must be carbon in this substance

Ethanol (chemical formula C2H5OH) is a kind of clean energy which can replace gasoline and other fuels, but when oxygen is insufficient, it will generate carbon dioxide and water as well as carbon monoxide. After 69 grams of ethanol is ignited with a certain amount of oxygen, the following reaction occurs: xc2h5oh + 8o2  yco2 + 2CO + 9h2o (1) what is the judgment coefficient X? (2) The mass of carbon monoxide is calculated

(1) According to the law of conservation of mass, there are 18 hydrogen atoms after the reaction, and there should be 18 before the reaction. Each ethanol molecule contains 6 hydrogen atoms, so the value of X is 3. Then we can calculate that the value of Y is 4, and the value of Z is 2 for later use. So the answer is: 3. (2) let the mass of carbon monoxide generated after the reaction be X: 3c2h5oh + 8o2 & nbsp; ignition; The first and 9h2o, which is the product of the product of the 9h2o + 9h2o + 9h2o + 9h2o + 9h2o + 9h2o + 9h2o + 9h2o + 9h2o + 9h2o + 9h2o, and the & nbsp & amp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & nbsp & 28 G