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lyudmila [28]
4 years ago
12

Ethanol is used in some after-shave lotions and deodourants. What properties makes it suitable for these uses?​

Chemistry
1 answer:
AleksAgata [21]4 years ago
8 0

Answer:

Its ability to denature bacterial proteins

Explanation:

Ethanol is a rapid antimicrobial against bacteria, fungi and viruses. When 70% concentrated Ethanol is in contact with a single celled organism, the it coagulates the protein at a slower rate, creating enough time for it to penetrate the cell before coagulation can block it.This will make the whole cell coagulated thus killing the cell.

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Provide two differences AND similarities between metals and non-metals. Six observations total.
scoundrel [369]

Answer:

look at the picture

Explanation:

There are total 118 elements, out of which 92 are found in nature while the remaining have been artificially prepared. These elements are divided into metals, non-metals and metalloids depending upon their properties.

3 0
2 years ago
A variety of factors influence enzyme activity. Substances that bind to the enzyme and interfere with substrate binding or catal
Fofino [41]
<h3>Answer:</h3>

1. Irreversible Inhibition-Inhibitor may permanently modify an enzyme

2. Irreversible inhibition- Tamiflu, a transition state analog, reversibly binds to neuraminindase

3. Competitive Inhibition-Inhibitor binds reversibly to an enzyme's active

4.Irreversible inhibition-Inhibitor binds to an enzyme at a site other than active site

5. Mixed inhibition-The Al3+ ion binds to acetylcholinesterase or to the acetylcholinesterase- substrate complex

6. Irreversible inhibition-DIPF permanently modifies the hydroxyl group of a Serine residue at the active site

<h3>Explanation:</h3>
  • An enzyme is a biological catalyst that catalysis chemical reactions.
  • Enzyme activity is influenced by several factors which include enzyme inhibitors, temperature, and pH among others.
  • Enzyme inhibitors are molecules that bind to the enzyme thus interfering with enzyme activity and preventing the binding of substrate to the enzyme.
  • Inhibitors may either irreversibly or reversibly bind the enzymes.
  • Competitive inhibitors compete with substrates for the active sites while non-competitive inhibitors bind irreversibly to other sites on the enzyme other than the active site.
  • Tamiflu is an example of a competitive inhibitor.
  • DIPF is an example of a non-competitive inhibitor as it binds the enzyme permanently.

3 0
4 years ago
An electron in an atom is known to be in a state with magnetic quantum number ml=−1
Ulleksa [173]

Explanation:

It is known that the maximum value of ml is equal to the vale of l. But the minimum value of n is as follows.

                    n = l + 1

where,     n = principle quantum number

                l = azimuthal quantum number

Values of n can be 1, 2, 3, 4 and so on. Whereas the values of l can be 0, 1, 2, 3, and so on.

Also, "m" is known as magnetic quantum number whose values can be equal to -l and +l.

So, when n = 1 then l = 0 and m = 0.

When n = 2 then l = 1 and values of m will be equal to -1, 0, +1. As it is given that the magnetic quantum number ml = -1. Hence, it is only possible when n = 2.

Thus, we can conclude that the smallest possible value of the principal quantum number n of the state is 2.

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Answer:

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Explanation:

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