Diatomic Molecules and Essential Reactions

Single Replacement

________: A more active element replaces a less active similar element in a compound.

Synthesis

________: 2 simple reactants produce ONE product.

Decomposition

________: ONE reactant breaks down into simpler products.

catalyst

A(n) ________ is anything that starts a reaction or makes it go faster.

Lithium

________ is the most active metal and gold and silver are the least active ones.

Combustion Reaction

________: A hydrocarbon burns in the presence of oxygen to produce Carbon Dioxide and Water.

hydrogen

In water and acid, ________ is a metal, but in everything else, its a non- metal.

Double Replacement

________: The cations of two ionic compounds switch compounds.

Calcium Nitrate

________ reacts with Lithium Sulfate to produce Lithium Nitrate and Calcium Sulfate:

Oxygen

O2

Hydrogen

H2

Nitrogen

N2

Fluorine

F2

Chlorine

Cl2

Bromine

Br2

Iodine

I2

Synthesis

2 simple reactants produce ONE product

Ex

2Mg + O2→ 2MgO

Decomposition

ONE reactant breaks down into simpler products

Single Replacement

A more active element replaces a less active similar element in a compound

Ex

2Mg+2HCl→ 2MgCl + H2

Double Replacement

The cations of two ionic compounds switch compounds

Ex

3CuCl2 + 2NaPo4 → 6NaCl + Cu(Po4)2

Combustion Reaction

A hydrocarbon burns in the presence of oxygen to produce Carbon Dioxide and Water

Ex

C3H8 + O2 → CO2 + 4HOH