1.Subscript,how many hydrogen molecules there are
2.No it is not balanced,oxygen is less than represented.
1)The branch of science concerned with the substances of which matter is composed and it is a study of matter.
2)It helps you understand the world around you,chemistry helps you to understand product labels and etc.
3)You find chemistry in daily life in the foods you eat,the air you breathe,cleaning chemicals and etc.
4) Physical,Analytical, Biochemistry,Organic and inorganic chemistry.
The factors that affect geometry of a molecule are
> The number of bonding electron pairs around the central atom.
> The number of pairs of non-bonding ("lone pair") electrons around the central atom.
A neutral carbon doesn't lack any electrons. It has exactly the same number of electrons as it has neutrons.
However, it has four electrons in its outer shell in comparison with eight electrons for a noble gas.
In that sense, it needs four electrons to complete its second shell.<span />