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seropon [69]
3 years ago
5

Read the following hypothesis about why a chicken bone becomes bendy after being soaked in vinegar: The bone can bend because th

e acid in the vinegar has removed the calcium that made it hard. What prediction could be made based on this hypothesis? A. An acidic substance like many drinks wouldn't make bones bendy. B. Acids are very powerful substances and should be handled with care. C. Other kinds of bones containing calcium wouldn't get bendy in the vinegar. D. If the acid was separated from the vinegar, chicken bones wouldn't become bendy in the remaining vinegar.
Chemistry
2 answers:
Genrish500 [490]3 years ago
7 0

Answer:

D. If the acid was separated from the vinegar, chicken bones wouldn't become bendy in the remaining vinegar.

Explanation:

The hypothesis states that the bone becomes bendy because of the acid in the vinegar, so therefore, if the acid is removed from the vinegar it won't become bendy.

kakasveta [241]3 years ago
6 0

Answer:

d

Explanation:

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Answer: Option (a) is the correct answer.

Explanation:

We know that ground state means in total electrons acquired by the element are present in their lowest energy level.

We calculate the azimutal numbers as follows.

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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.

And, n = 1 is the lowest energy level. Therefore, we can conclude that the ground state of an atom means all of the quantum numbers have their lowest values (n = 1,ℓ = mℓ = 0).

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3 years ago
Scientists are often interested in knowing the
Lady bird [3.3K]

Answer:0.004993 mols

Explanation:

4 0
4 years ago
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at a particulat temperature, a smaple of pure water has a Kw of 7.7x10-14. what is the hydroxide concentration of this sample
ycow [4]

Answer: The hydroxide concentration of this sample is 3.85\times 10^{-7}

Explanation:

When an expression is formed by taking the product of concentration of ions raised to the power of their stoichiometric coefficients in the solution of a salt is known as ionic product.

The ionic product for water is written as:

K_w=[H^+]\times [OH^-]

7.7\times 10^{-14}=[H^+]\times [OH^-]

As [H^+]=[OH^-]

2[OH^-]=7.7\times 10^{-14}

[OH^-]=3.85\times 10^{-7}

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3 years ago
What is the total number of grams of Mg consumed when .5 mile of H2 is produced
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3 years ago
Calculate the mass defect and the nuclear binding energy of nitrogen-14. The mass of a proton is 1.00728 amu, and the mass of a
Bezzdna [24]

Answer:The binding energy of the nitrogen nucleus is 6.26\times 10^{28} MeV.

Explanation:

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Mass of proton ,m_p=1.00728 amu

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The binding energy of the nitrogen nucleus is 6.26\times 10^{28} MeV.

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