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DiKsa [7]
3 years ago
12

3Nitrogen obtained in the laboratory is collected over water.why?​

Chemistry
1 answer:
Cloud [144]3 years ago
8 0
Because displacement of water is the convenient way to obtain gas.
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152 dm^3 of gas has a pressure of 98.6 kpa. at what pressure will the volume be quartered
djverab [1.8K]

Answer:

P₂ = 394.4 KPa

Explanation:

Given data:

Volume of gas = 152 dm³

Pressure of gas = 98.6 KPa

Final pressure = ?

Final volume = quartered = 1/4×152 = 38 dm³

Solution:

P₁V₁ = P₂V₂

P₂ = P₁V₁/V₂

P₂ = 98.6 KPa .  152 dm³ / 38 dm³

P₂ = 14987.2 KPa.  dm³ / 38 dm³

P₂ = 394.4 KPa

6 0
3 years ago
imagine a drop of water hanging from your finger. how is this similar to the water staying together after the balloon is popped
stiv31 [10]
The meniscus on your fingy is comparable to that of a bursted balloon

3 0
3 years ago
Which is heavier? A pound of cotton candy or a pound of marbles
Ugo [173]
Answer: both are equal


They weighed the same because they both a pound
6 0
3 years ago
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QUE ES UN ENLACE GLUCOSÌDICO?
Blizzard [7]

Answer:

Explanation:

no se hombre necisito pontos

8 0
3 years ago
Select correct examples of linear molecules for five electron groups. Select correct examples of linear molecules for five elect
Shalnov [3]

Explanation:

Formula to calculate hybridization is as follows.

                Hybridization = \frac{1}{2}[V+N-C+A]

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

So, hybridization of BeCl_{2} is as follows.

              Hybridization = \frac{1}{2}[V + N - C + A]

                                    = \frac{1}{2}[2 + 2]

                                    = 2

Hybridization of BeCl_{2} is sp. Therefore, BeCl_{2} is a linear molecule. There will be only two electron groups through which Be is attached.

Similarly, hybridization of XeF_{2} is calculated as follows.

         Hybridization = \frac{1}{2}[V + N - C + A]

                                    = \frac{1}{2}[8 + 2]

                                    = 5

Therefore, hybridization of XeF_{2} is sp^{3}d. Therefore, [tex]XeF_{2} is also a linear molecule. Though there are three lone pair of electrons present on a xenon atom and it is further attached with fluorine atoms through two electron pairs. Hence, there are in total five electron groups.

Thus, we can conclude that out of the given options XeF_{2} is the correct examples of linear molecules for five electron groups.

7 0
2 years ago
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