Chemical Equations

Phase notations:

Indicate the physical state of each substance in a reaction.

Equation Coefficients

Whole numbers written in front of each substance to indicate the amount of that substance in the chemical reaction.

Amount

Molecules, atoms, moles

Law of conversation of mass

Sum of the masses of the reactants will be equal to the sum of the masses of the product.

To satisfy the law of conversation of mass we must have the..

Same number and type of each atom in the reactnts and products

Balanced CHemical equations have the..

Smallest whole number ratio of coefficents

Coefficents give the

Amount of a substance in a chemical equation

Subscripts give the

ratio of atoms in a compound

coefficents x subscripts =

Total number of atoms present

Equation coefficents indicate the ratio of what

Of 1 substance to another in a balanced chemical reaction

Mole ration:

in a balanced chemical equation is used to convert between quantities of different chemical substances in a reaction.