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IrinaK [193]
3 years ago
6

4. milk turning sour

Chemistry
2 answers:
sp2606 [1]3 years ago
7 0
I think it’s a physical
aalyn [17]3 years ago
5 0

Answer:

Chemical change

Explanation:

Hi again. The lactose in the milk is converted to lactic acid by microbes. It has turned into a new substance that is irreversable.

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What is Keq for the reaction N2 + 3H2 2NH3 if the equilibrium concentrations are [NH3] = .250 M, [N2] = .590 M, and [H2] = .750
Lena [83]
After thorough researching, the Keq for the reaction N2 + 3H2 2NH3 if the equilibrium concentrations are [NH3] = .250 M, [N2] = .590 M, and [H2] = .750 M is 1.33. The correct answer to the following given statement above is 1.33
3 0
3 years ago
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Complete the sentence with the word "element" or "compound. O is a(n)_______ and H2O, is a(n)____​
nikdorinn [45]

Answer:

Element; compound

Explanation:

Oxygen is an element on the periodic table, but when it's combined with the element Hydrogen, it produces water, which is a compound (H2O). When two elements combine, it produces a compound.

I hope this helps! :)

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3 years ago
Which of the following statements concerning the process of spontaneous folding of proteins is false?
Luda [366]

Answer:

(A) It may be an essentially random process.

Explanation:

The natural folding process of protein can be defective in several human infections and it usually comprises the initial generation of extremely compact state. It may also involve the systematical reduction in the range of conformational species and the initial generation of local structure. Therefore, the only false statement is option (A).

8 0
4 years ago
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What is the overall reaction order for this rate law: rate = k[A]2[B][C]?
Kay [80]

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7 0
3 years ago
The different unit cell types have a different packing efficiency. The simple cubic has the least efficient packing and the face
kozerog [31]

Answer:

The answer is "52.8".

Explanation:

Please find the graph file in the attachment.

They have the atoms in 8 corners with one unit cell in an one so mesh (SCC).

Atoms throughout the corner contribute \frac{1}{8}to both the cell unit

Atom number per SCC unit cell, Z = (8 \times \frac{1}{8}) = 1

Let 'r' become the atom's radius.  r = 3.43\times 10^{-8}\ \ cm

We can see from the diagram that edge length AB = a = 2r

Packing\  efficiency = \frac{(1 \ atom \ Volume  \times Z)}{Volume \ of \ unit\ cell \times  100}\\\\

                                 = \frac{\frac{4}{3}\times \pi \times r^3 \times 1}{a^3 \times 100}\\\\=\frac{\frac{4}{3}\times \pi \times r^3 \times 1}{(2r)^3 \times 100}  \\\\=\frac{\frac{4}{3}\times \pi \times( 3.43\times 10^{-8}cm)^3 \times 1}{(2\times 3.43\times 10^{-8}cm)^3 \times 100}\\\\= 52.8 \%

7 0
3 years ago
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