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Ira Lisetskai [31]
3 years ago
8

How many lone pairs are around the central atom in the Lewis formula for the

Chemistry
1 answer:
Butoxors [25]3 years ago
6 0

Answer:

                  Zero Lone Pairs

Explanation:

                     Hydrogen Sulfate is made from Sulfuric acid. It is an ion and contains a negative charge on one of its oxygen atoms. The central atom of this ion is sulfur atom.

                     The lewis structure of hydrogen sulfate is attached below. It can be seen from the structure that the sulfur is carrying no lone pair of electrons as that carried by oxygen atoms. The sulfur atom is making four single or multiple bonds with oxygen atoms. Also, the electron and molecular geometry around sulfur is Tetrahedral.

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When nonpolar solutes are placed in water, the hydrogen bonding network of water is disrupted, and there are fewer ways for wate
satela [25.4K]

Answer:  increase in entropy

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from  an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

\Delta S is positive when randomness increases and \Delta S is negative when randomness decreases.

When the non polar solutes are placed in water, the hydrogen bonding network of water is disrupted, and there are fewer ways for water to hydrogen-bond with itself. That means the water molecules are more randomly arranged and thus have more entropy and thus \Delta S is positive.                

5 0
3 years ago
Your solution has a volume of 36 ml and a mass of 970 g. what is the density of your solution
LenaWriter [7]

Answer:

The answer is

<h2>26.94 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 970 g

volume = 36 mL

The density of the object is

density =  \frac{970}{36}  \\ 26.944444...

We have the final answer as

<h3>26.94 g/mL</h3>

Hope this helps you

6 0
3 years ago
In which regions of the atmosphere does temperature increase as altitude increases
Sveta_85 [38]

Answer:

<h2>stratosphere</h2>
  • In the stratosphere, temperature increases with altitude.
  • The stratosphere contains the ozone layer, which protects the planet from the Sun's harmful UV.
  • The higher layers contain few gas molecules and are very cold.
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5 0
3 years ago
Hydrazine, N2H4, is a corrosive liquid used in rocket and jet fuels. Ammonia, NH3, is a gas that dissolves in water to form a so
Lyrx [107]

OK in the case of hydrazine  14 grams of nitrogen  combine with 2 gram of hydrogen and with ammonia 14 grams combine with 3 grams of hydrogen.

Ratio 2:3
5 0
3 years ago
_____ are isotopes that emit radiation because they have unstable nuclei.
alexandr1967 [171]
The correct answer among the choices given is option B. Radioisotopes are isotopes that emit radiation because they have unstable nuclei. These are radioactive isotopes of an element. They are defined as atoms that contain an unstable combination of neutrons and protons.
7 0
3 years ago
Read 2 more answers
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