Use the detailed guides for step-by-step electron counting, bonding, formal charges, resonance and VSEPR geometry. The broader lists below show representative records in the generator's local database.
How to test support: Enter the formula or common name on the home page. A local match displays the full properties panel. An unsupported input may show a clearly labeled PubChem 2D reference instead.
Common molecules in the local database
H2 — Hydrogen
N2 — Nitrogen
O2 — Oxygen
F2 — Fluorine
Cl2 — Chlorine
Br2 — Bromine
H2O — Water
NH3 — Ammonia
CH4 — Methane
CO — Carbon monoxide
CO2 — Carbon dioxide
O3 — Ozone
H2O2 — Hydrogen peroxide
SO2 — Sulfur dioxide
SO3 — Sulfur trioxide
BF3 — Boron trifluoride
PCl3 — Phosphorus trichloride
PCl5 — Phosphorus pentachloride
SF6 — Sulfur hexafluoride
XeF2 — Xenon difluoride
Acids and related compounds
HCl
HF
HBr
HI
HNO3
H2SO4
H3PO4
HCOOH
CH3COOH
Organic examples
C2H6
C2H4
C2H2
C3H8
C4H10
C6H6
CH3OH
C2H5OH
CH2O
CH3CHO
C3H6O
C6H12O6
Representative ions
NH4+ — Ammonium
OH− — Hydroxide
CN− — Cyanide
NO3− — Nitrate
CO3²− — Carbonate
SO4²− — Sulfate
PO4³− — Phosphate
ClO− — Hypochlorite
ClO3− — Chlorate
ClO4− — Perchlorate
MnO4− — Permanganate
Cr2O7²− — Dichromate
CH3COO− — Acetate
HCO3− — Bicarbonate
Ion formatting is limited by stored keys and aliases. Compact notation such as NH4+ or NO3- is usually the best starting point.
What “supported” means
Result type
What is displayed
Local database match
Stored diagram, valence-electron count, charge, central atom, geometry, bond angle, hybridization, molar mass and composition.
PubChem fallback
A conventional 2D structure reference and compound identifier. Lewis-specific fields may be unavailable.
No match
An error message with suggestions for supported examples.
Formula ambiguity: One formula can represent multiple constitutional or stereochemical isomers. A formula-only lookup may not identify the exact structure intended.