Balancing Equations
HgO --> Hg + O2
2HgO --> 2Hg +O2
CaO + H2O --> Ca(OH)
synthesis
A number that represents the number of units of each substance taking part in a reaction
Coefficient
What is a way to describe a chemical reaction with chemical formulas and other symbols?
The chemical reaction in which one element replaces another element in a compound is called what?
Single-Displacement Reaction
Mg + O2 --> MgO
2Mg + O2 --> 2MgO
Fe + CuSO4 --> FeSO4 + Cu
Single Displacement
What is the rate at which reactants change into products called?
Reaction rate
What is a substance that speeds up a chemical reaction?
Catalyst
The ______ ______ states that atoms, ions, and molecules must collide in order to react.
collision model
H2 + O2 --> H2O
C10H8 +12O2 --> 10CO2 + 4H2O
combustion
What is it called when a reaction can occur in both the forward and reverse directions.
Reversible reaction
What is a substance that is used to slow down a chemical reaction?
Inhibitor
This type of reaction occurs when one substance breaks down into two or more substances.
Decomposition
N2 + 3H2 --> 2NH3
NaCl + AgNO3 --> NaNo3 +AgCl
Double displacement
What are reactions that release energy called?
Exergonic Reactions
Which type of reaction occurs when two or more substances combine into one?
Synthesis
The mass in grams of one mole of a substance is called what?
molar mass
MgCl2 + AgNO3 --> Mg(NO3)2 +AgCl
MgCl2 + 2AgNO3 --> Mg(NO3)2 + 2AgCl
NH4NO3 --> N2 +2H2O
Decomposition
When energy is given off mainly in the form of thermal energy, the reaction is called what?
Exothermic
Which type of reaction occurs when a substance reacts with oxygen to produce energy in the form of heat?
Combustion
Reaction in which the positive ion from one compound replaces the positive ion of the other to form two new compounds.
Double Displacement Reaction