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umka21 [38]
2 years ago
7

24. Which of the following pairs of solutions produce a precipitate when combined? A) Fe(NO); and KCI B) NH4Cl and AgNO3 C) KOH

and NH C1 D) Na2SO, and KC1 /​
Chemistry
1 answer:
11Alexandr11 [23.1K]2 years ago
4 0

Answer:

69 my Nigerian brotherzzzzzzzz

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Phosphorus has a low melting point because the intramolecular forces holding it together is London Dispersion Forces.

Explanation:

London Dispersion Forces (LDF) are the weakest intramolecular forces. You don't need to break the covalent bonds, but rather the Van Der Waals' Forces. If LDF are the weakest forces, then the melting point is low.

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Ethylene- C2H4 = 85.7% Carbon and 14.3% Hydrogen


Find the atomic masses for each element and multiply it by the number of atoms in the compound, then add.


C- 12.0 * 2= 24.0


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-----------------------


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H 4.00 / 28.0= .143 = 14.3%


<h3>Ethylene is 85.7% Carbon and 14.3% Hydrogen </h3>
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