An ionic compound is formed by exchange of valency between bonding ions.
The formula of an ionic compound formed from O2− with;
Magnesium ion has a charge of 2+ and oxygen ion has a charge of 2-, when the two are combined, we obtain a compound of formula MgO.
Sodium ion has a charge of +1 and oxygen ion has a charge of 2-, when the two are combined, we obtain a compound of formula Na2O.
Aluminium ion has a charge of +3 and oxygen ion has a charge of -2, when the two are combined, we obtain a compound of formula Al2O3.
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Answer:
Ernest Z. The molarity and mass percent of the vinegar are 0.8393 mol/L and 5.010 %.
The number of atoms that are present in 24g Carbon sample is
<h3>What is atom?</h3>
An atom can be regarded as the basic building block of chemistry and it is the smallest unit.
The Relative Molecular Mass of Carbon is known to be (12 g)
The Mass of the item was given as 24 g
Then we can find the Moles as ( 24g Carbon sample/24 g) = 2
Then the Number of atoms can be calculated as the
( Avogadro Number*Moles)
Therefore, the number of atoms that are present in 24g Carbon sample is 12.044*10^23
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CHECK THE COMPLETE QUESTION BELOW
How many atoms are present in 24g Carbon sample?
Answer:
Explanation:
Hello,
For the given reaction:
In such a way, the law of mass action, in terms of the pressures of both A and B at equilibrium result:
Thus, by introducing the change , due to equilibrium, we obtain:
Hence, solving for by solver or quadratic equation, we get:
Finally, since the pressure of B at equilibrium equals the change, it results:
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the answer is d
because the reverse reaction is slow