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qaws [65]
3 years ago
6

Question 10 of 32

Chemistry
1 answer:
nignag [31]3 years ago
4 0

Answer:

D

Explanation:

The correct answer that gives a good example of how the same chemical used to help people can harm the environment would be when <u>excess fertilizers run off into rivers and create a dead zone.</u>

<em>Fertilizers are usually applied to crops as an agricultural practice by farmers to enhance the yield of the crops and boost food or raw materials production. However, excess fertilizer gets washed into nearby water bodies and ends up creating a low-oxygen zone that is incapable of supporting lives within the water body - also known as </em><em>dead zones.</em>

The correct option is, therefore, D.

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A container is filled with a mixture of helium, Xenon, and neon gases. The total pressure inside the container is 1,788 mmHg. If
dmitriy555 [2]

Answer: The partial pressure of Xenon in a container filled with a mixture of helium, Xenon, and neon gases and a total pressure inside the container is 1,788 mmHg with the pressure of the helium gas as 760 mmHg, the pressure of the neon gas as 200 mmHg is 828 mmHg

Explanation:

NOTE :

Dalton's law of partial pressures states that in a mixture of gases the pressure exerted by each gas is the same as that which it would exert if it alone occupied the container.

How to determine the partial pressure

Total pressure = Partial pressure of Neon + Partial pressure of Xenon + Partial pressure of helium

Partial pressure of Xenon = ? mmHg

Partial pressure of Helium = 760 mmHg

Partial pressure of Neon = 200 mmHg

Total pressure of gases = 1, 788 mmHg

Partial pressure of Xenon = Total pressure - Partial pressure of Helium - Partial pressure of Neon

Partial pressure of Xenon = 1, 788 - 760 -200

Partial pressure of Xenon = 1,788 - 960

                                           = 828 mmHg

Thus, the partial pressure of Xenon is 828 mmHg

6 0
2 years ago
Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no rea
Marrrta [24]

sodium chloride and lead (II) acetate
potassium sulfate and strontium iodide
chromium (III) nitrate and sodium phosphate

1.       2NaCl + Pb(CH3COO)2 → 2NaCH3COO + PbCl2

2.       K2SO4 + SrI2 → KI + SrSO4

3.       Cr(NO3)3 + Na3PO4 →CrPO4 + NaNO3

8 0
4 years ago
Read 2 more answers
What are the formal charges of both chlorines and iodine in icl2?
sergejj [24]

Answer:

Explanation:

 Formal charge of ICl₂⁻

Formal charge = group no - ( no of non bonding electrons +no of bonds)

In I there are 7 electrons in outermost orbit . If we add one more electrons due to - ve charge on the ion , it becomes eight . This centrally placed iodine forms two single bond with two chlorine atoms on either side.

Each of chlorine atoms also contains 7 valance electrons like iodine.

So formal charge of chlorine

= group no - ( no of non bonding electrons +no of bonds)

= 7 - ( 6 + 1 )

= 0

So formal charge of iodine

= group no - ( no of non bonding electrons +no of bonds)

= 7 - ( 5 + 2 )

=0

 Formal charge of ICl₂⁺

In this case , central iodine will have only 6 valence electrons due to absence one electron.

So formal charge of chlorine in  ICl₂⁺

= group no - ( no of non bonding electrons +no of bonds)

= 7 - ( 6 + 1 )

= 0

formal charge of iodine in  in   ICl₂⁺

7 - ( 4 + 2)

= 1

6 0
4 years ago
N2 + 3H2, -&gt; 2NH3<br> If I have 50.6 L of N2 and excess H2, how many liters of NH3 can I produce?
Anastaziya [24]

Answer:

C. 101.2 L

Explanation:

N2 + H2= NH3

Balancing it,

N2 + 3 H2 = 2.NH3

(1 mol) (3 mol) (2 mol)

which means

1 molecule of nitrogen reacts with 3 molecule of hydrogen to form ammonia.

Likewise,

50.6 l of nitrogen reacts with 50.6 × 3= 151.8 l of hydrogrn to form 50.6 × 2= 101.2 l of ammonia.

3 0
3 years ago
What is a Boitic factor
svetoff [14.1K]

Answer:

Biotic components, or biotic factors, can be described as any living component that affects another organism or shapes the ecosystem. This includes both animals that consume other organisms within their ecosystem, and the organism that is being consumed

Explanation:

also you spelt it wrong

4 0
3 years ago
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