The Law of Conservation of Mass states that the
before the reaction,
has to
the
after the reaction. Atoms are not
and they are not
N₂+
3H22NH3
The Law of Conservation of Mass states that the total mass of the substances before the reaction has to equal the total mass of the substances after the reaction. Atoms are not created or destroyed during a chemical reaction, and they are not transformed into different elements.
In the given reaction, N₂ reacts with 3H₂ to form 2NH₃. According to the Law of Conservation of Mass, the total mass of the nitrogen and hydrogen atoms before the reaction must be equal to the total mass of the nitrogen and hydrogen atoms after the reaction.
The Law of Conservation of Mass states that the total mass of substances before a chemical reaction has to equal the total mass of substances after the reaction. Atoms are not created or destroyed in a chemical reaction, and they are not divided.
Let's break down the given chemical equation:
N₂ + 3H₂ → 2NH₃
Before the reaction:
- The reactants consist of nitrogen gas (N₂) and hydrogen gas (H₂).
- N₂ has a molecular mass of 28 g/mol, and we have 1 mole of N₂. So, the total mass of N₂ before the reaction is 28 grams.
- H₂ has a molecular mass of 2 g/mol, and we have 3 moles of H₂. So, the total mass of H₂ before the reaction is 6 grams (2 g/mol × 3 mol = 6 g).
The total mass of reactants before the reaction is 28 grams (N₂) + 6 grams (H₂) = 34 grams.
After the reaction:
- The products are ammonia (NH₃).
- NH₃ has a molecular mass of 17 g/mol, and we have 2 moles of NH₃. So, the total mass of NH₃ after the reaction is 34 grams (17 g/mol × 2 mol = 34 g).
As we can see, the total mass of substances before the reaction (34 grams) is equal to the total mass of substances after the reaction (34 grams), in accordance with the Law of Conservation of Mass.
To answer this question, let's first understand the Law of Conservation of Mass. The Law of Conservation of Mass states that in a chemical reaction, the total mass of the reactants is equal to the total mass of the products. In simpler terms, mass is conserved in chemical reactions.
Now, let's break down the provided equation: N₂ + 3H₂ → 2NH₃.
The reaction shows the combination of nitrogen gas (N₂) and hydrogen gas (H₂) to form ammonia gas (NH₃). Notice that the number of atoms on both sides of the reaction must be the same in order to satisfy the Law of Conservation of Mass.
To determine if the equation is balanced (i.e., obeys the Law of Conservation of Mass), we count the atoms on each side:
On the left-hand side (reactant side):
- 1 nitrogen atom (N₂)
- 6 hydrogen atoms (3H₂)
On the right-hand side (product side):
- 2 nitrogen atoms (2NH₃)
- 6 hydrogen atoms (2NH₃)
By counting the atoms, we find that the equation is balanced. The number of nitrogen and hydrogen atoms remains the same before and after the reaction, fulfilling the Law of Conservation of Mass.
It is important to note that balancing equations can involve adjusting coefficients (the numbers in front of each molecule) to ensure that the number of atoms on both sides is equal. The balanced equation represents the conservation of mass in a chemical reaction.