Atoms/Elements
Balancing Equations
Balancing Equations
Reaction Types
100
Electrons orbit around this part of an atom...
the nucleous. (protons/Neutrons)
100
The molecules/chemicals that go into a chemical reaction are called...
reactants (because they react)
100
The molecules/chemicals that are produced from a chemical reaction are called...
Products
100

A + B --> AB

Synthesis 

200
What makes one atom different from another is the...
number of protons!
200
When balancing the reactants and products of a chemical equation, you need to balance BOTH the...
Number and kinds of elements.
200
The most important thing to know about balancing chemical equations is that the number of atoms in the reactants...
Always equals the number of atoms in the products.
200

How many reactants does a decomposition reaction have?

1

300
The 3 parts of an atom and their charges are...
• Proton- Positive charge • Nuetron- NO charge • Electron- Negative charge
300
Balance this equation... 2NaCl + F2 > NaF + Cl2
2NaCl + F2 > 2 NaF + Cl2
300
Balance this equation... N2 + 3H2 > NH3
N2 + 3H2 > 2NH3
300

What type of reaction?

SnCl2 + Zn -> ZnCl2 + Sn

Single Replacement

400
When 2 elements bond together they create a...
Molecule.
400
Balance this equation... CH4 + O2 > CO2 + H2O
CH4 +2O2 > CO2 + 2H2O
400
Balance this equation... Reactants: 2KClO3 > KCl + O2
2KClO3 > 2KCl + 3O2
400

What type of reaction?

KCl + AgNO3 -> KNO3 + AgCl


Double Replacement

500
What is the atomic symbol for Gold
Au
500
Balance this equation... HCl + CaCO3 > CaCl2 + H2O + CO2
2HCl + CaCO3 > CaCl2 + H2O + CO2
500
The field of science that deals with balancing chemical equations is called...
Stoichiometry.
500

What are the 2 product in a combustion reaction?

CO2 and H2O

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