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Elodia [21]
3 years ago
5

Which of the following is an anion of 14N? 14N5+ 14N3- 15N

Chemistry
1 answer:
Stella [2.4K]3 years ago
4 0
The answer is 15n...
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Calcule el poh de una disolucion de acido bromhidrico hbr 0.176m
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Answer:

pOH = 13.246

Explanation:

pH = -log[H+]

[H+] = [HBr] porque HBr es un acido fuerte.

pH = -log(0.176) = 0.754

pH + pOH = 14

pOH = 14 - 0.754 = 13.246

4 0
3 years ago
If the gold in the crown was mixed with a less-valuable metal like bronze or copper, how would that affect its density?
Sindrei [870]

Answer: If the gold in the crown was mixed with a less-valuable metal such as bronze of copper then this affects its density by making it to weigh even more and if it weighs more then it has less of chance to float. Observe: Drag each of the crowns into the liquid.

Explanation:

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3 years ago
the diagram below shows DNA molecules. What do the broken lines connected to hydrogen atoms represent in this diagram?
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Hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (H), covalently bound to a highly electronegative atom such as flourine (F), oxygen (O) and nitrogen (N) atoms.

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Help me please help...
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Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases. -google

its probably 40

8 0
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Ice must absorb heat to melt into water. What must water do to evaporate?
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