Mole Ratio Flashcards
What are coefficients?
The number before the element
What does a chemical equation tell us?
It tells us what substances react in a chemical reaction and what products are produced
What is a balanced reaction equation?
An equation where there are equal numbers of each type of atom on both sides of the equation
What is the limiting reagent?
The reactant that is not present in excess and that does react completely
What are the three characteristics of a limiting reagent?
Regent is in short supply
It limits the amount of product that can be made
It will be completely used up in a reaction
What are the two characteristics of an excess reagent?
Present in excess in a reaction
Will be left over after the reaction
When does a reaction stop?
When the limiting reagent is used up
What is theoretical yield?
The amount of product that can be formed from a complete reaction of a given amount of limiting reagent/reactant
What is the equation for percentage yield?
Actual yield x 100% Theoretical yield
