Equation 1)

Reactants | Coefficient | Products | Coefficient |

Zn | 1 | ZnCl_{2} | 1 |

HCl | 2 | H_{2} | 1 |

Notice that a one is understood to be the coefficient of a formula with no number in front of it.

Equation 2)

Reactants | Coefficient | Products | Coefficient |

KClO_{3} | 2 | KCl | 2 |

O_{2} | 3 |

Equation 3)

Reactants | Coefficient | Products | Coefficient |

S_{8} | 1 | SF_{6} | 8 |

F_{2} | 24 |

Notice that a one is understood to be the coefficient of a formula with no number in front of it.

Equation 4)

Reactants | Coefficient | Products | Coefficient |

Fe | 4 | Fe_{2}O_{3} | 2 |

O_{2} | 3 |

Equation 5)

Reactants | Coefficient | Products | Coefficient |

C_{2}H_{6} | 2 | CO_{2} | 4 |

O_{2} | 7 | H_{2}O | 6 |

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