A collection of 7 atoms. There is nothing in the question to indicate that they are bonded into anhydrous sulphuric acid.
2 hydrogens
Three atoms of two elements.
The 2 in the compound H2O means that there are only 2 hydrogen atoms.simple as thatIt just means 2.it meansHydrogen, 2 oxygen.So it's basically just 2.H2o is actually just the scientific name for water, and it means 1 hydrogen atom, and 2 oxygen atoms.Hope that answers all your questions.Thanks! :)Incorrect, I'm afraid. it means 2 hydrogen atoms and one oxygen atom. It is a convention in chemistry to use capital letters.Its mean 2 parts of Hydrogen & One part of Oxygen.
Well if your talking about H2O, it means there is 2 hydrogen molecules and one oxygen.
2
Calcium and water react to form calcium hydroxide and hydrogen. Ca + 2H2O --> Ca(OH)2 + H2
7= Hydrogen 2 Sulfur 1 Oxygen 4
H2 - 2 hydrogen atoms SO4 - 1 sulfur atom, 4 oxygen atoms
There are 7 atoms in total: 2 hydrogen, 1 sulfur, and 4 oxygen
Number for hydrogen is +1.Number for sulphur is +6.Number for oxygen is -2.The oxidation number for the overall ion is -1. Oxidation numbers for hydrogen and oxygen are +1 and -2 respectively. By balancing the charges, the sulfur atom is in +6 state.
3. magnesium and sulfur
It is sulphuric acid H2SO4
There are three oxygen atoms and a sulfur atom in a sulfur trioxide molecule, hence a total of four.
The chemical formula for hydrogen sulfide is H2S. There are two hydrogen atoms and one sulfur atom for a total of three atoms.
H2SO4 is sulfuric acid.
those are subscripts and mean that there are 2 hydrogen atoms and 1 sulfur atom and 4 oxygen atoms
H2S contains two elements: hydrogen and sulfur.
The subscripted number following an element tells you how many atoms of that element are in that molecule. H2SO4 -> (2) hydrogen atoms, (1) sulfur atom, and (4) oxygen atoms.