The coefficient for aluminium is 4.
Explanation:
We have the following chemical reaction:
Al + O₂ → Al₂O₃
In order to balance the chemical equation the number of the atoms entering the reaction should be equal to the number of atoms leaving the reaction.
2 Al + 3/2 O₂ → Al₂O₃
However we need integer numbers so we multiply everything with 2.
4 Al + 3 O₂ → 2 Al₂O₃
The coefficient for aluminium is 4.
Learn more:
about balancing chemical equations
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The number of pounds present in 2.72 kg of Mastiff puppy is 5.996 pounds
<h3>What is weight?</h3>
Weight can be defined as the gravitation pull on a body. or it can also be defined as the product of the mass of a body and its acceleration due to gravity.
<h3>Units of weight</h3>
weight has several units and they include
- Newton
- pounds
- ounces
- Tons.
These units can be converted.
From the question,
If
But,
Then,
Therefore,
- 2.72 kg of Mastiff = (2720/453.6) pounds of average Mastiff = 5.996 pounds
Hence, The number of pounds present in 2.72 kg of Mastiff puppy is 5.996 pounds.
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The correct answer is false.
<span>The number of molecules of each gas must be equal since 1 mol of any gas needs to contain 6.02x10^23 molecules. So 1mol O</span>₂ and 1mol CO both need to contain 6.02x10^23 molecules
Well on the periodic table Cl is in the section saying it is a non metal. In addition, it is nonmetls because it is usually a gas while metals are not. Finally, it is a non metal because it usually gains electrons instead of losing them during a reaction unlike metals.
