no 1:1
Hydrogen can't exist as a three-atom single-element molecule no matter what you do to it - it has only one bonding site. If you stick an atom with two bonding sites between the hydrogen atoms you can pull it off, but this isn't a question about water. Oxygen can naturally exist as a three-atom molecule - it's ozone.
All the gases except the Noble(Inert) gases, which are monatomic.
"2HO" would imply two separate molecules each containing 1 hydrogen atom and 1 oxygen atom. While such a chemical species does exist it is different from H2O2, which consists of 2 hydrogen atoms and 2 oxygen atoms bound together in 1 molecule.
Most matter doesn't exist as individual atoms. Inert or "noble" gasses like helium and argon excepted, most matter exists in molecules that are composed of two or more atoms. Even pure oxygen isn't individual atoms; oxygen is the O2 molecule composed of TWO oxygen atoms. Except within the cores of stars, hydrogen, the most common element, normally exists as the H2 hydrogen molecule. So in general, matter is composed of molecules, which are composed of atoms.
12 carbon atoms exist in a molecule of maltose if the molecules have 12 oxygen atoms.
no 1:1
Not usually. The acid part of an amino acid has the empirical formula -CO2H and the amino part usually has the formula -NH2.
Water is made of two hydrogen atoms and an oxygen atom. The combination of hydrogen and oxygen is needed in order to create a molecule with the properties characteristic of water. Water cannot exist without oxygen.
Negative. Hydroxide atoms also don't exist, they're molecules. They consist of two atoms, one hydrogen atom and one oxygen atom. The charge is -1 on the oxygen.
Hydrogen exist as H2.It has 2 atoms in a molecule.
No, it is a compound. Compounds are made up of elements, and elements are made up of atoms.
Oxygen and Hydrogen, along with Fluorine, Chlorine, Bromine, Iodine, and Nitrogen, to not exist naturally as single atoms. O2 stands for an oxygen molecule, which is made up of two oxygen atoms bonded together. H2 stands for two Hydrogen atoms bonded together. Sometimes atoms are bonded together for other reasons. This notation means the same no matter what the element. For example, Ca2 would stand for two calcium atoms bonded together.
Like all material things that exist, water is made from atoms. Water is made specifically from hydrogen and oxygen atoms, elements that are in the form of gas when at stp and not combined.
Atoms. Some atoms can not exist without another atom/s to stabilise it and form a molecule For example, the O2 (oxygen) molecule consists of two O (oxygen) atoms. The H2O (water) molecule consists of two H (hydrogen) atoms and one O (oxygen) atom.
Hydrogen can't exist as a three-atom single-element molecule no matter what you do to it - it has only one bonding site. If you stick an atom with two bonding sites between the hydrogen atoms you can pull it off, but this isn't a question about water. Oxygen can naturally exist as a three-atom molecule - it's ozone.
There are two hydrogen/oxygen atoms in each molecule of hydrogen/oxygen.
molecules