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Chemistry
24 March, 15:50
Balance the equation.
Al2S3 (s) + H2O (l) →2Al (OH) 3 (s) + 3H2S (g)
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Kyra Pope
24 March, 15:58
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The balance chemical equation is Al2S3 + 6 H2O → 2 Al (OH) 3 + 3 H2S
Explanation:
A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. The chemical equation needs to be balanced so that it follows the law of conservation of mass. The equation given to us can be balanced as
Al2S3 + 6 H2O → 2 Al (OH) 3 + 3 H2S
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Emmanuel Hart
24 March, 16:06
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Hello!
The answer is: Al2S3 (s) + 6H2O (l) →2Al (OH) 3 (s) + 3H2S (g)
Why?
Balancing equations is the process where we look for an equal number atoms for each element on both sides of a chemical reaction (reactants and products) in order to satisfy the Law of Conservation of Mass, which states that the mass is equal before and after the reaction.
So, we have to check the number of atoms for both sides of the reaction:
Reactants:
Al=2 atoms
S = 3 atoms
H = 2 atoms
O = 1 atom
Products:
Al = 2 atoms
O = 6 atoms
H = 6 + 6 atoms = 12 atoms
S = 3 atoms
So, we can see that there is a difference between the number of atoms of Hydrogen, there are 2 atoms for the reactants and 12 for the products, for the Oxygen we can see that there is just 1 atom for the reactants and 6 for the products.
To adjust the number of atoms of Hydrogen and Oxygen, we just need to multiply the compound by 6 (H2O)
Al2S3 (s) + 6H2O (l) →2Al (OH) 3 (s) + 3H2S (g)
Therefore, we have the same number of atoms for each element on both sides of the chemical reaction.
Have a nice day!
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