balance the equation
(NH4)2Cr2O7 gives Cr2O3 +H2O+N2
Answers
(NH₄)₂Cr₂O₇ ⇒ Cr₂O₃ + 4H₂O + N₂
Answer:
A chemical reaction equation that is balanced has the same total charge and number of atoms for each element in the reactants and products of the reaction. In other words, both sides of the reaction have the same mass and charge.
Explanation:
The given chemical equation is as follows below.
(NH₄)₂Cr₂O₇ → Cr₂O₃ + H₂O + N₂.
On the reactant's side, the number of elements is:
- Nitrogen - 1 x 2 = 2
- Hydrogen - 4 x 2 = 8
- Chromium - 2
- Oxygen - 7
On the product's side, the number of elements is:
- Nitrogen = 2
- Hydrogen = 2
- Chromium = 2
- Oxygen = 3 + 1 = 4
So, the number of elements on the reactant's side as well as on the product's side is unequal, so we have to balance the above chemical equation.
The following is the balanced chemical equation:
(NH₄)₂Cr₂O₇ → Cr₂O₃ + 4H₂O + N₂.
After balancing, the number of elements,
On the reactant's side, the number of elements is:
- Nitrogen - 1 x 2 = 2
- Hydrogen - 4 x 2 = 8
- Chromium - 2
- Oxygen - 7
On the product's side, the number of elements is:
- Nitrogen = 2
- Hydrogen = 4 x 2 = 8
- Chromium = 2
- Oxygen = 3 + 4 = 7
Hence, the complete balanced equation is (NH₄)₂Cr₂O₇ gives Cr₂O₃ + 4H₂O + N₂.
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