A skeleton equation in chemistry contains obviously the abbreviations of the elements you are being asked to represent. it may contain the exponents also known as subscripts but it does not include coefficients.
When a chemical reaction occurs, it can be described by an equation. This shows the chemicals that react (called the reactants) on the left-hand side, and the chemicals that they produce (called the...
Skeleton equations are ways of drawing organic compounds. They show zig-zags instead of carbon to carbon bonds, and hydrogens are not drawn in, as they are common sense.