Chemical Reactions Flashcards
A process in which one or more substances are converted into new substances with different physical and chemical properties.
Chemical Reactions
substances that enter into a chemical reaction (before the arrow).
Reactants
substances that are produced by a chemical reactions (after the arrow).
Products
states that matter is neither created nor destroyed in a chemical reaction.
Number of atoms of each element must be the same before and after chemical reactions.
Law of Conservation of Mass
Two or more reactants combine to form a single product.
Combination or Synthesis Reaction
A + B → AB
A reaction in which an uncombined element displaces an element that is part of the compound.
The reactants are always one element (or diatomic molecule) and one compound
Single Displacement Reaction
A + BC → AC +B
A reaction that involves the exchange of parts between the two compounds.
Atoms or ions from two different compounds replace each other.
There are two compounds as reactants and two compounds as products
Double Displacement Reaction
AB + CD → AD + CB
A specific type of double displacement reaction.
The reaction between an acid and a base forming salt and water
Neutralization Reaction
Acid + Base → Salt + Water
A reaction in which a substance reacts with oxygen, usually with the release of heat and light to produce flame.
Substances react with O2 to produce CO2 and H2O.
A rapid exothermic reaction.
Combustion Reaction
Substance + O2 → CO2 + H2O
atoms tend to gain, lose or share electrons to acquire a full set of valence electrons, which is typically 8 electrons.
Octet Rule
