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Anuta_ua [19.1K]
2 years ago
8

What is the geometry name for PF5? Is PF5 polar or non-polar?

Chemistry
1 answer:
KonstantinChe [14]2 years ago
3 0
Geometry name is trigonal bypyramidal

non-polar

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if electrons in an atom have the lowest possible energies the atom is in the ground state true or false
nata0808 [166]
I believe the answer is true. Hope this helps.
7 0
3 years ago
Describe how water molecules interact with sodium chloride molecules in order for water to dissolve salt.
Phantasy [73]

Answer:

Sodium chloride is an ionic salt that completely dissociates in water.

Explanation:

Sodium chloride in water dissociates according to the equation.

NaCl (aq) → Na + (aq) + Cl- (aq)

While water stays in balance according to the equation

2H2O (l) ⇄ H3O+(aq)  +  OH-(aq).

By dissociating the solute in the solvent, the water molecules pick up the sodium cations as well as the chloride anions to break the bonds in the salt crystals and thus produce the dissolution

If the ions are analyzed separately, we see that Na + interacts with water, so it would be producing sodium hydroxide, releasing protons.  

If the reaction goes in the sense of products, the Na + would increase the concentration of [H +], however being a neutral salt the pH does not vary from 7, so the reaction would never go in the sense of products, but only reagents. That's why as the sodium hydroxide is a strong base, it only promotes the formation of water and the cation.

Na+  +  H2O  ←  NaOH  +  H+

The same situation occurs with chloride, since no matter how much you want to form hydrochloric acid, it dissociates by promoting the formation of water plus the corresponding anion. Na + and Cl- act as too weak conjugate acid and base, so the reaction would never go in the direction of products

Cl-  +  H2O  ←  HCl  +  OH-

3 0
3 years ago
What interacted directly with the photographic plates to cause images in Becquerel’s experiment?
Anna [14]
Answer: A. uranium salt

Becquerel made a conclusion that it was the uranium that causes the images found in the photographic plates. Though his theory was disproved during the first time,he continued to develop it. Then, it is through this experiment that Becquerel discovered radioactivity.

7 0
3 years ago
Determine the empirical formula of a compound containing 40. 6 grams of carbon, 5. 1 grams of hydrogen, and 54. 2 grams of oxyge
zavuch27 [327]

The empirical formula is C₂H₃O₂

<h3>What is Empirical formula of a compound ?</h3>

The empirical formula is the simplest whole number ratio of elements present in a compound.

The total molar mass of the compound is 118.084 g/mol.

mass of Carbon present = 40.6

mass of Hydrogen present = 5.1 grams

mass of Oxygen present = 2 grams

Moles of C = 40.6/12 = 3.38

Moles of H = 5.1/1.008 = 5

Moles of Oxygen = 54.2/15.999 = 3.38

Ratio of Moles of C to Oxygen is 1 : 1

Ratio of Moles of C to H is 1/1.5

Multiplying each mole fraction by 2

The empirical formula is C₂H₃O₂

To know more about Empirical Formula

brainly.com/question/14044066

#SPJ1

5 0
1 year ago
How many grams of CaCl, are needed to prepare 120 mL of 450 M Cach<br> solution?
harkovskaia [24]

Answer:

<em>gggyyhhhhjjjjjjhhhhhhhhhhhhhjjjjj</em>

5 0
3 years ago
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