Types of Reactions and Stoichiometry
This page introduces three main types of chemical reactions and reviews stoichiometry principles. The reactions covered are precipitation reactions, strong acid/strong base reactions, and redox reactions. Each type is explained with its key characteristics and products.
Definition: Precipitation reactions occur when two aqueous solutions combine to form a solid product called a precipitate.
The formation of a precipitate is determined by solubility rules. Strong acid/strong base reactions are described as producing salt and water, with acids donating protons and bases accepting them.
Vocabulary: Acids are proton donors, containing H+ ions, while bases are proton acceptors, containing OH- ions.
Redox reactions are explained as involving the transfer of electrons, with reduction defined as gaining electrons and oxidation as losing electrons. The page also lists several types of redox reactions:
Example: Types of redox reactions include combustion (where hydrocarbons react with oxygen to produce carbon dioxide and water), synthesis (where simple elements combine to form compounds), and decomposition (where compounds break down into component elements).
The page concludes with a review of stoichiometry, emphasizing the importance of mole ratios based on coefficients in chemical equations. It outlines a three-step process for stoichiometric calculations:
- Convert given quantities to moles
- Use mole ratios
- Convert to the desired unit
Highlight: Stoichiometry in acid base titration and redox reactions relies heavily on understanding and applying these mole ratio principles.
