STOICHIOMETRY
Is the area of study that examines the quantities of substances consumed and produced in chemical reactions
It is based on what premise of Dalton’s
Atoms are neither created or destroyed: The Law of Conservation of Mass.
How are chemical reactions represented
CHEMICAL EQUATIONS
REACTANTS
The chemical formula to the left of the arrow
PRODUCTS
the substance produced to the right of the arrow
The numbers in front of the formulas
THE COEFFICIENTS : indicate the relative numbers of molecules of each kind involved in the reaction.
There must be an equal number of atoms of each element on each side of the arrow= a balanced equation
In a formula
2. IDENTITY H2O2 =1 peroxide