Chemical Equations
This rule of the universe that requires us to balance equations.
What is the Law of Conservation of Mass?
Often associated with fire and explosions, this type of reaction produces CO2 and H2O.
What is combustion?
These occurrences can tell you when a chemical reaction has occurred.
What is light is produced, heat is given off or absorbed, gas is produced, a change in color, a precipitate is formed?
This equation below is this type of reaction chemical reaction:
H2O2 + heated ----> H2(g) + O2.
What is decomposition?
These are numbers put in front of compounds to balance chemical equations.
What are coefficients?
A reaction where two or more substances combine to form a single product.
What is synthesis?
A symbolic representation of a chemical reaction using words or chemical formulas.
What is a chemical equation?
The equation shown below is an example of this type of reaction:
CaSO4 + 2K ---> K2SO4 + Ca
What is a single replacement reaction?
These substances are created from a chemical reaction.
What are products?
A reaction where a more reactive element changes places with a less reactive element in a compound.
What is single replacement reaction?
DOUBLE JEOPARDY
These elements that can only exist in a 2 atom molecule if not in a compound.
What are diatomic atoms/elements?
The equation shown below is this type of chemical reaction:
2Na + Cl2 ---> 2NaCl
What is a synthesis or combination reaction?
These starting substances of a chemical equation are found on the left side of the arrow.
What are reactants?
A reaction where one substance breaks down into two or more products.
What is decomposition?
This type of chemical equation uses formulas and symbols to represent a chemical reaction, but it DOES NOT obey the law of conservation of mass.
What is a skeletal equation?
The equation shown below is this type of chemical reaction:
CH4 + 2O2 ---> CO2 + 2H2O
What is combustion?
These numbers used to designate the number of atoms or molecules in an element or compound.
What are subscripts?
This reaction occurs when two elements in different compounds change places with each other to form two new compounds.
What is double replacement?
This type of chemical reaction is represented by the following pattern:
A + BC ---> B + AC
What is a single replacement reaction?
The equation show below is an example of this type of chemical reaction:
ZnI2 + AlBr3 ---> ZnBr2 + AlI3
What is a double replacement reaction?