When sodium reacts with chlorine, sodium chloride is produced. Andrew represented this reaction with this equation:Na + Cl2 → 2NaClThe equation is because the number of atoms is on both sides of the arrow.
Question
When sodium reacts with chlorine, sodium chloride is produced. Andrew represented this reaction with this equation:Na + Cl2 → 2NaClThe equation is because the number of atoms is on both sides of the arrow.
Solution
The equation is "balanced" because the number of "sodium" and "chlorine" atoms is "equal" on both sides of the arrow.
Here's the step-by-step explanation:
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On the left side of the equation (before the reaction), there is one atom of sodium (Na) and two atoms of chlorine (Cl2).
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On the right side of the equation (after the reaction), there are two atoms of sodium and two atoms of chlorine in the form of two molecules of sodium chloride (2NaCl).
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Therefore, the number of each type of atom is the same on both sides of the equation, which means the equation is balanced.
This is important because it reflects the Law of Conservation of Mass, which states that matter cannot be created or destroyed in a chemical reaction.
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