Conservation in Chemical Reactions Quick Check
1.) Zn + 2HCl → H2 + ZnCl2
2.) The total number of atoms does not change, so mass is conserved in the reaction.
3.) 215 amu
4.) 76 amu
1 and 2 are OK. I don't know what 3 and 4 are all about.
Thank you
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To determine if conservation is occurring in a chemical reaction, we need to check if the total number of atoms before the reaction is the same as the total number of atoms after the reaction.
In the given reaction: Zn + 2HCl → H2 + ZnCl2
Before the reaction:
Zn = 1 atom
H = 2 atoms
Cl = 2 atoms
After the reaction:
H2 = 2 atoms
ZnCl2 = 3 atoms
The total number of atoms before the reaction is 1 + 2 + 2 = 5 atoms.
The total number of atoms after the reaction is 2 + 3 = 5 atoms.
Since the total number of atoms before the reaction is the same as the total number of atoms after the reaction, we can conclude that conservation is occurring in this reaction.
Now let's move on to understanding the given values (215 amu and 76 amu).
Amu stands for atomic mass unit, which is a unit of mass used to measure atoms and molecules. The atomic mass of an element is the average mass of its isotopes, taking into account their natural abundance.
In this case, 215 amu and 76 amu are likely referring to the molecular masses of specific substances involved in the reaction. However, without more information, it is difficult to determine exactly what these values represent.
To find the molecular mass of a substance, we need to know the atomic masses and the number of atoms of each element in the molecule. We can then calculate the total mass by summing up the masses of each element.
If you provide more information or context, I can help you further analyze the given values.