Chemical Reactions and Types of Reactions

Diatomic elements

H, N, O, F, Cl, Br, I

Synthesis Reactions

Ionic = cross charges

Decomposition

Use diatomic elements

Carbonates(decomposition) form

Carbon dioxide

Metal hydroxides(decomposition) produce

Water and metal oxide

Combustion always forms

Carbon dioxide and water (g)

Single displacement

Determine reaction using activity series, then cross charges to get results

Skeleton equation

Shows products, reactants and states of matter - no coefficients

Anything above an arrow means

added to reaction, not part of reaction

Double displacement reactions

Write all aqueous as ions, swap positive ions, cross charges, no reaction unless a liquid (usually H_2O) or solid precipitate (usually H_2S) forms, determine if precipitate will form from solubility rules

Soluble

will dissolve (aq)

Insoluble

will not dissolve (s)