Answer:
See explanation
Explanation:
On a molecular scale, when you drop a small amount of NaCl or table salt into water, the molecules of salt break apart from each other and diffuse into the liquid because they are attracted to it more strongly. When the water is hot, the molecules diffuse more quickly, because the water molecules move faster and attract the salt molecules faster.
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Answer:


Explanation:
Hello!
In this case, since the molecular formula of glycine is C₂H₅NO₂, we realize that the molar mass is 75.07 g/mol; thus, the moles in 130.0 g of glycine are:

Furthermore, we can notice 75.07 grams of glycine contains 14.01 grams of nitrogen; thus, the percent nitrogen turns out:

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Isn't that a substitution reaction? Sorry if i am wrong haven't taken these in a while
The answer is 14.22 mg / (mm^2)