H20 is a chemical formula. H stands for Hydrogen, O stands for Oxygen. An Oxygen atom has a different makeup than a Hydrogen atom. So H20 means there are 2 hydrogen atoms and 1 Oxygen atom. H20 is essentially H201, but the 1 is silent. Atoms make up everything.. Every substance.. etc. You'll learn about it in 8th grade.
The equation for the reaction is 2 C2H2 + 5 O2 -> 4 CO2 + 2 H2O. Therefore, the minimum mole ratio of O2 to C2H2 to permit complete reaction is 5/2. The actual ratio present, 7.40/2.40 or about 3.08, is greater than this minimum; therefore, all the available C2H2 will react. The reaction equation shows that the number of moles of H2O produced is the same as the number of moles of C2H2 reacted. Therefore, 2.40 moles of H2O are produced. The gram molecular mass of H2O is about 18.015; therefore the mass of water produced is 43.2 grams, to the justified number of significant digits.
To calculate the number of molecules in 16.75 grams of H2O, we first need to convert grams to moles (using the molar mass of H2O), and then convert moles to molecules using Avogadro's number. The molar mass of H2O is 18.015 g/mol. After converting, there are approximately 3.52 x 10^23 molecules in 16.75 grams of H2O.
11.5 mole H2O (2 mole H/1 mole H2O)(6.022 X 10^23/1 mole H)(1 mole H/6.022 X 10^23) = 23.0 moles of H atoms
The balanced equation for this decomposition reaction is 2 H2O2 -> 2 H2O + O2.
Balanced equation: 2 H2 + O2 --> 2 H2O
The oxidation number of H in H2O is +1, and that of O is -2. Since there are three H2O molecules, the total oxidation number would be 3(+1) + 3(-2) = -3.
Water, or H2O is a free-standing neutral compound, so it's oxidation number is 0. Its atoms have oxidation number though. Hydrogen's oxidation number in water is +1, and oxygen's is -2.
The oxidation number of oxygen in H2O (water) is -2. Oxygen typically has an oxidation number of -2 in most compounds. In H2O, there are two hydrogen atoms each with an oxidation number of +1, resulting in a total charge of 0 as oxygen contributes -2.
For the hydrogen atoms the oxidation state is 1+, for the oxygen it is 2-
2
The oxidation number of hydrogen in H2O is +1, so for 6 molecules of H2O, the total oxidation number for 6H2O would be +12.
Its a scientific equation when it is like this (H2O) and it has to have a number and it has to mean somthing
Two hydrogen atoms.
The 3 means there are 3 molecules of H2O (water), and the 2 is a subscript and means there are 2 atoms of hydrogen (H) in one molecule.
This chemical equation is not balanced because the number of hydrogen atoms on the reactant side (2) does not equal the number on the product side (2 in H2O). Similarly, the number of oxygen atoms on the reactant side (2) does not equal the number on the product side (1 in H2O). Balancing the equation would involve adjusting the coefficients in front of the molecules to ensure that the number of atoms of each element is the same on both sides of the equation.
O.S. of H = +1 O.S. of O = -2 O.N. of cpd = 0
If there is no number, then a "1" is implied.