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vodomira [7]
2 years ago
9

I NEED HELP WITH THESE! PLEASEEE

Chemistry
1 answer:
cupoosta [38]2 years ago
6 0

Answer:

have you interested sex then reply me I am from India

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What is magnetism? please answer
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Answer:

a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.

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Explanation:

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When an electron loses electrons it becomes more 1 negative. 2 none of the above. 3 neutral 4 positive.
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The answer would be more positive
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How do you solve (2x+1)+(x-10)=90
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3 years ago
Hydrogen bonding between polyamide chains plays an important role in determining the properties of a nylon such as nylon 6,6. Dr
Eduardwww [97]

Answer:

See figure 1

Explanation:

In the structure of nylon 6,6 we have <u>amide groups</u>. In this functional group, We have a nitrogen bond to hydrogen, so in this bond, we will have a <u>dipole</u>, due to the <u>electronegativity difference</u>. Nitrogen has more electronegativity than hydrogen, therefore a <u>positive dipole</u> would be generated in the hydrogen atom. Additionally, in the <u>carbonyl group</u> (C=O) due to the oxygen, we will have also a <u>dipole</u>, in this case, a <u>negative dipole</u> because the oxygen atom has <u>more electronegativity</u> (compare with carbon).

When we put two strings of nylon 6,6 the positive dipole will interact with the negative dipole and vice-versa and we will obtain the <u>"hydrogen bonds"</u>.

See figure 1

I hope it helps!

3 0
3 years ago
Determine the molar solubility for pb3(po4)2 in pure water. ksp for pb3(po4)2 is 1.0 x 10-54.
hoa [83]
Dissociation of Pb₃(PO₄)₂ is;
                       Pb₃(PO₄)₂(s)     ⇆      3Pb²⁺(aq)     +     2PO₄³⁻(aq)
initial                                                    -                          -
change               -X                            +3X                     +2X
Equilibrium                                          3X                        2X

Ksp            =       [Pb²⁺(aq)]³ [PO₄³⁻(aq)]²
1.0 x 10⁻⁵⁴ =         (3X)³ (2X)²
1.0 x 10⁻⁵⁴ =        108X⁵
         X      =        6.21 x 10⁻¹² M

Hence the molar solubility of Pb₃(PO₄)₂ is 6.21 x 10⁻¹² M.
7 0
3 years ago
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