law of conservation of mass matter and mass is neither created nor destroyed during a chemical...
DESCRIPTION
5 Types of Chemical Equations 1. Synthesis Reactions 2. Combustion Reactions 3. Decomposition Reactions 4. Single Replacement Reactions 5. Double Replacement ReactionsTRANSCRIPT
Law of Conservation of Mass
Matter and Mass is neither created nor destroyed during a chemical reaction
Products in a chemical reaction must have the same mass as the reactants What I start with is what I finish with
Mass reactants = Mass products
Types of Chemical Equations
5 Types of Chemical Equations
1. Synthesis Reactions2. Combustion Reactions3. Decomposition Reactions 4. Single Replacement Reactions5. Double Replacement Reactions
1. Synthesis Reactions
Two or more substances (A and B) react to produce a single product (AB)
A + B ABReal life example = ?
2. Combustion Reactions
Oxygen combines with a substance and releases energy in the form of heat and light
CxHy+ O2 CO2 + H2O + light + heatReal life example = ?
3. Decomposition Reactions
A single compound breaks down into two or more elements or new compounds
AB A + BReal life example = ?
4. Single Replacement ReactionsThe atoms of one
element replace the atoms of another element
A + BX AX + BA metal can replace any
metal listed below it that is in a compound. It cannot replace any metal listed above it.
A more reactive halogen replaces a less reactive halogen
Real life example = ?
5. Double Replacement Reactions
An exchange of ions between two compoundsThey all produce either water, a precipitate,
or a gasAX + BY AY + BXReal life example = ?
Type of Reaction
Reactants Probable Products
Generic Equation
Synthesis Two or more substances
One compound A + B AB
Combustion •A metal and oxygen•A nonmetal and oxygen•A compound and oxygen
•The oxide of the metal•The oxide of the nonmetal•Two or more oxides
A + O2 AO
Decomposition
One compound Two or more elements and or compounds
AB A + B
Single replacement
•A metal and a compound•A nonmetal and a compound
•A new compound and the replaced metal•A new compound and the replaced nonmetal
A + BX AX + B
Double replacement
Two compounds Two different compounds, one of which is a solid, water or a gas
AX + BY AY + BX