Chemical Equations
Balancing Equations How to
Chemical Equations
Balancing Chemical Equations
Counting Atoms
Types of Reactions
100
The substances you start with in a chemical equation
What is Reactant
100
How do you balance equations?
What is by Adding coefficients
100
N2
What is Dinitrogen?
100
Balance the chemical equations.
KOH + H3PO4 K3PO4 + H2O
What is adding 3 KOH to the left side and 3 to H2O?
100
O3+N2
What is 2 Nitrogen and 3 0xygen? 5 Total
100
reactions that absorb energy
What is an endothermic reaction
200
the substances created in a chemical change/equation
What is a Product
200
what can never be changed while balancing equations
What is Subscripts
200
O2
What is molecular oxygen?
200
SeCl6 + O2 -------> SeO2 + Cl2
What is adding 3 to Cl2 left side
200
2Cl3 + B6
what is 12 atoms?
200
AB + CD ------> AD +BC What type of reaction is this?
What is Double Replacement
300
What is a Yield Sign
300
This states that the number and kinds of atoms on the reactants has to be the same as the number and kinds of atoms on the products side.
What is Law of Conservation of Mass
300
NH3
What is Ammonia?
300
4Li + O2------->____Li2O
What is adding 2 to Li2O to the right side.
300
F + B7Cl2
What is Fluoride and seven Boron and two Chlorine?
300
This type of reaction Na + Cl -------> NaCl
What is Synthesis
400
What is the large number written before the element's symbol?
What is a Coefficient
400
What do coefficients indicate?
What is the Number of Molecules present
400
CH4
What is methane?
400
N2 + O2-------> N4O2
What is adding 2 to nitrogen to the left side?
400
2 NH4O3
what is 16 atoms?
400
This type of reaction KCrO --------> KCr + O
What is Decomposition
500
What do subscripts indicate?
What is how many atoms of that element you have bonded together in a molecule
500
What equation does this represent
CO2 + H2O --------> C6H12O6 + O2 + energy
What is Photosynthesis
500
C6H12O6
What is Glucose?
500
H2O2 ---------> H2O + O2
What is adding 2 Hydrogen to the left side and 2 Hydrogen to the right side??
500
6 H2O
What is 13 atoms?
500
This type of reaction CuCl2 + 2Al ------> 2AlCl3 + 3Cu
What is Single Replacement