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Llana [10]
3 years ago
6

For each bond, show the direction of polarity by selecting the correct partial charges. si-p si-s s-p the most polar bond is

Chemistry
1 answer:
solmaris [256]3 years ago
3 0
To determine the direction of polarity of each bond, we must know the electronegativities of each atom involved in the bonds.

Si = 1.90
P = 2.19
S = 2.58

As we move right across a row in the periodic table, the atoms become more electronegative. The direction of polarity in a bond will have the partial positive charge on the less electronegative atom and the partial negative charge on the more electronegative atom. Therefore, the direction of polarity of each bond is as follows:

(δ⁺)Si - P(δ⁻)
(δ⁺)Si - S(δ⁻)
(δ⁻)S - P(δ⁺)

Since silicon is the least electronegative, it will have the partial positive charge in each bond. And since sulfur is the most electronegative, it will have a partial negative charge when bonded to either silicon or phosphorus.
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the pressure of gas is 100.0 the volume is 500.0

Explanation:

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At a soccer game, a player kicks the ball. It leaves the ground as it travels across the field. Then, it comes back to the groun
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B

Explanation:

the gravitational force is a big play.

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3. At the end of a warm summer day, imagine you are jumping from the 80°F air into an
djyliett [7]

Answer:

  • <u>1. Since the temperature of your body is higher than the temperature of the air and of the water, heat will flow from your body to the air and pool.</u>

<u></u>

  • <u>2. The pool feels cooler than air because the water can absorb heat energy faster than the air, due to liquids are better conductors than gases.</u>

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Explanation:

Heat always flows from warmer substances to colder ones.

The normal body temperature is 98ºF. Therefore, the heat will flow from your body to the air and pool, which are at a lower temperature of 80ºF. In both cases, you will lose thermal energy and the external parts of your body will cool down.

The difference between both cases is in the heat conduction capacity of both air and water.

Liquids (and solids) are better <em>thermal conductors </em>than gases because the conduction of heat occurs as result of the direct contact between the particles of matter: the atoms or molecules in hot matter vibrate faster than their neighbors and transmit them kinetic energy by direct contact.

Therefore, the liquid water in the swimming pool, at the same temperature than the air, will be able to absorb more heat in the same time from the body.

In conclusion, the body will cool down faster in water than in air which is why the pool feels cooler than air.

8 0
3 years ago
A container holds 100.0 mL of nitrogen at 21° C and a pressure of 736 mm Hg. What will be its volume if the temperature increase
devlian [24]

Answer:

V₂ = 104.76 mL

Explanation:

Given data:

Initial volume = 100.0 mL

Initial temperature = 21°C (21 + 273.15 K = 294.15 K)

Final temperature = 35°C (35 + 273.15 K = 308.15 k)

Final volume = ?

Solution:

Charles Law:

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ =100.0 mL × 308.15 K / 294.15 K

V₂ = 30815 mL.K /294.15 K

V₂ = 104.76 mL

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3 years ago
How many atoms are there in 5.7 mol of hafnium?
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