Balancing Equationds and Reaction Types Review

Atoms/Elements

100

Electrons orbit around this part of an atom...

the nucleous. (protons/Neutrons)

200

What makes one atom different from another is the...

number of protons!

300

The 3 parts of an atom and their charges are...

• Proton- Positive charge • Nuetron- NO charge • Electron- Negative charge

400

When 2 elements bond together they create a...

Molecule.

500

What is the atomic symbol for Gold

Au

Balancing Equations

100

The molecules/chemicals that go into a chemical reaction are called...

reactants (because they react)

200

When balancing the reactants and products of a chemical equation, you need to balance BOTH the...

Number and kinds of elements.

300

Balance this equation... 2NaCl + F2 > NaF + Cl2

2NaCl + F2 > 2 NaF + Cl2

400

Balance this equation... CH4 + O2 > CO2 + H2O

CH4 +2O2 > CO2 + 2H2O

500

Balance this equation... HCl + CaCO3 > CaCl2 + H2O + CO2

2HCl + CaCO3 > CaCl2 + H2O + CO2

Balancing Equations

100

The molecules/chemicals that are produced from a chemical reaction are called...

Products

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.

300

Balance this equation... N2 + 3H2 > NH3

N2 + 3H2 > 2NH3

400

Balance this equation... Reactants: 2KClO3 > KCl + O2

2KClO3 > 2KCl + 3O2

500

The field of science that deals with balancing chemical equations is called...

Stoichiometry.

Reaction Types

100

A + B --> AB

Synthesis 

200

How many reactants does a decomposition reaction have?

1

300

What type of reaction?

SnCl₂ + Zn -> ZnCl₂ + Sn

Single Replacement

400

What type of reaction?

KCl + AgNO₃ -> KNO₃ + AgCl

Double Replacement

500

What are the 2 product in a combustion reaction?

CO₂ and H₂O