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GalinKa [24]
4 years ago
8

What is the name of the collection of elements on the right side of the periodic table with electrons sequentially filling orbit

als in their valence?
Chemistry
2 answers:
hodyreva [135]4 years ago
6 0

Explanation:

The collection of elements on the right side of periodic table is known as p-block elements.

General electronic configuration of p-block elements is ns^{2}np^{1-6}. And, these elements are from group 13 to group 18.

For example, nitrogen has atomic number 7 and it is a group 15 element. Electronic configuration of nitrogen is 1s^{2}2s^{2}2p^{3}.

Since, nitrogen lies in between group 13 to 18. So, it is a p-block element.

Thus, we can conclude that the name of the collection of elements on the right side of the periodic table with electrons sequentially filling orbitals in their valence is p-block elements.

Setler79 [48]4 years ago
4 0
They are known as the p-block. Hope this helps!
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The ___ vapor pressure at high altitudes causes a liquid to boil at a ____ temperature.
Nastasia [14]

The _HIGHER__ vapor pressure at high altitudes causes a liquid to boil at a _LOWER___ temperature.

Explanation:

Vapor pressure is the pressure applied by the molecule of a liquid at the surface of the liquid as it transitions into a gaseous phase. When the vapor pressure exceeds the atmospheric pressure, this is when the liquid begins to boil. Therefore when the atmospheric pressure is low, then the liquid will boil at lower temperatures, because the vapor pressure of the liquid will overcome the atmospheric pressure at lower temperatures.

3 0
3 years ago
Read 2 more answers
How many grams of HCl(aq) are required to react completely with 1.25g of Zn(s) to form ZnCl2(aq) and H2
faltersainse [42]

1.39 g HCl

Explanation:

The balanced chemical equation for this reaction is given by

Zn(<em>s</em>) + 2HCl(<em>aq</em>) ---> ZnCl2(<em>aq</em>) + H2(<em>g</em>)

Convert the # of grams of Zn to moles:

1.25 g Zn × (1 mol Zn/65.38 g Zn) = 0.0191 mol Zn

Use the molar ratio to find the # of moles of HCl needed to react completely with the given amount of Zn:

0.0191 mol Zn × (2 mol HCl/1 mol Zn) = 0.0382 mol HCl

Convert this amount to grams:

0.0382 mol HCl × (36.458 g HCl/1 mol HCl) = 1.39 g HCl

8 0
3 years ago
What is the number of neutrons is one atom of carbon?
antoniya [11.8K]

Carbon atoms have 6 neutrons.


<em>I hope this helped you out!! Happy thanksgiving! </em>

5 0
3 years ago
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A student used a sling psychrometer to measure the humidity of the air. If the relative humidity was 65% and the dry bulb temper
nataly862011 [7]

Answer:

3° C

Explanation:

The dew point temperature is the temperature of the air to which the air must be cooled so as to become saturated with the water vapor.

Here it is given that the relative humidity in the air, RH=  is 65%

And the dry bulb temperature is T = 10° C

Therefore, the dew bulb temperature is,

 $Td= T - \frac{100-RH}{5}$

$Td= 10 - \frac{100-65}{5}$

       = 10 - 7

       = 3° C

So the dew point temperature is 3° C .

3 0
3 years ago
What amount of a nonelectrolytic solute should be dissolved in 28.9 moles of benzene (C₆H₆) at 25°C to change the vapor pressure
RideAnS [48]

Answer:

The amount of a nonelectrolytic solute that has to be dissolved in 28.9 moles to change the vapor pressure of benzene by 17.9 is 6.31 moles.

Explanation:

Let's see how to solve this, step by step applying Raoult's Law (Colligative property).

Pressure solution = χsolvent . Pressure solvent

You have to consider that Pressure in solution is, Pressure Pure - Pressure in Solution (Solute+Solvent). The statement says, that pressure has fallen 17.9%, so let's find out that

100% ....... 94.2 Torr

17.9 % ...... x

16.86 Torr (after the Rule of 3) - This is the value of decline.

So, 94.2Torr - 16.86 Torr = 77.34 Torr

Now the formula

77.34 Torr = 94.2 Torr . X (where x is molar fraction)

x = moles of benzene / moles of benzene + moles of nonelectrolytic solute

77.34 Torr / 94.2 Torr = X

0.821 = moles of benzene / moles of benzene + moles of nonelectrolytic solute

0.821 = 28.9 moles / 28.9 moles + nonelectrolytic

0.821 (28.9 moles + nonelectrolytic) = 28.9 moles

23.72 moles + 0.821 nonelectrolytic = 28.9 moles

0.821 nonelectrolytic = 28.9 moles - 23.72 moles

0.821 nonelectrolytic = 5.18 moles

nonelectrolytic moles = 5.18 / 0.821

nonelectrolytic moles = 6.31

8 0
3 years ago
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