What tells you how many atoms of a reactant or product take part in reaction?

The coefficients in a balanced chemical equation tell you how many atoms of each reactant and product take part in the reaction.

Δείτε πώς λειτουργεί:

* συντελεστές: These are the numbers written in front of each chemical formula in a balanced equation.

* Balancing: Οι συντελεστές ρυθμίζονται για να εξασφαλιστεί ότι ο ίδιος αριθμός ατόμων κάθε στοιχείου εμφανίζεται τόσο στις πλευρές του αντιδραστηρίου όσο και στις πλευρές του προϊόντος της εξίσωσης. This follows the law of conservation of mass, which states that matter cannot be created or destroyed.

Παράδειγμα:

The balanced equation for the combustion of methane is:

ch₄ + 2o₂ → co₂ + 2h₂o

* Αντιδραστήρια: 1 molecule of methane (CH₄) and 2 molecules of oxygen (O₂)

* Προϊόντα: 1 molecule of carbon dioxide (CO₂) and 2 molecules of water (H₂O)

This equation tells us:

* 1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms are involved on the reactant side.

* 1 carbon atom, 4 hydrogen atoms, and 4 oxygen atoms are also involved on the product side.

Therefore, the coefficients indicate the number of atoms or molecules involved in the reaction.