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Ionic Compound Formula Writing Examples

100

Sodium Chloride

NaCl

200

Magnesium chloride

MgCl2

300

Aluminum oxide

Al2O3

400

 Iron (III) phosphate

FePO4 

500

Cobalt (II) Nitrate

Co(NO3)2

Molecular Compound Formula Writing Examples

100

Dinitrogen tetroxide

N2O4

200

Pentanitrogen hexachloride

N5Cl6

300

Heptaiodine nonoxide

I7O9

400

Trinitrogen pentaselenide

N3Se5

500

Octaselenium triiodide

Se8I3

Chemical Equation Writing Examples (unbalanced)

100

Hydrogen reacts with oxygen to form water

H₂ + O₂ → H₂O

200

Potassium chlorate breaks down into potassium chloride and oxygen

KClO₃ → KCl + O₂

300

Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas

Zn + HCl → ZnCl₂ + H₂

400

Methane combusts in oxygen to form carbon dioxide and water

CH₄ + O₂ → CO₂ + H₂O

500

Ethanol (C₂H₅OH) burns in oxygen to produce carbon dioxide and water

C₂H₅OH + O₂ → CO₂ + H₂O

Chemical Equation Balancing Examples

100

CH₄ + O₂ → CO₂ + H₂O

CH₄ + 2O₂ → CO₂ + 2H₂O

200

H₂ + O₂ → H₂O

2H₂ + O₂ → 2H₂O

300

KClO₃ → KCl + O₂

2KClO₃ → 2KCl + 3O₂

400

Zn + HCl → ZnCl₂ + H₂

Zn + 2HCl → ZnCl₂ + H₂

500

C₃H₈ + O₂ → CO₂ + H₂O

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

Misc

100

Calcium Chloride

CaCl₂

200

Sulfur hexafluoride

SF₆

300

Fe₂O₃ + CO → Fe + CO₂

Fe₂O₃ + 3CO → 2Fe + 3CO₂

400

Iron reacts with copper(II) sulfate to form iron(II) sulfate and copper

Fe + CuSO₄ → FeSO₄ + Cu

500

H₃PO₄ + Ca(OH)₂ → Ca₃(PO₄)₂ + H₂O

2H₃PO₄ + 3Ca(OH)₂ → Ca₃(PO₄)₂ + 6H₂O