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fomenos
3 years ago
12

What does pollution mainly come from

Chemistry
1 answer:
Ipatiy [6.2K]3 years ago
4 0

Answer:

Pollution comes from factories, careless humans, chemicals, non-biodegradable trash.

Explanation:

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A solution of NaF is added dropwise to a solution that is 0.0144 M in Ba2+. When the concentration of F- exceeds ________ M, BaF
BARSIC [14]

Answer:

When the concentration of F- exceeds 0.0109 M, BaF2 will precipitate.

Explanation:

Ba²⁺(aq) + 2 F⁻(aq) <----> BaF₂(s)

When BaF₂ precipitates, the Ksp relation is given by

Ksp = [Ba²⁺] [F⁻]²

[Ba²⁺] = 0.0144 M

[F⁻] = ?

Ksp = (1.7 × 10⁻⁶)

1.7 × 10⁻⁶ = (0.0144) [F⁻]²

[F⁻]² = (1.7 × 10⁻⁶)/0.0144 = 0.0001180555

[F⁻] = √0.0001180555 = 0.01086 M = 0.0109 M

Hope this Helps!!!

7 0
4 years ago
How many electrons does silver have to give up in order to achieve a pseudo-noble-gas electron configuration? 2 4 3 1?
posledela
Silver has to give up one electron in order to achieve a pseudo-noble gas electronic configuration.<span />
6 0
4 years ago
Read 2 more answers
Please help, due tomorrow! ツ
oksano4ka [1.4K]

There are two kinds of mixtures

a) homogeneous : the boundary of the two components is not physically distinct

b) heterogeneous:the boundary of the two components is  physically distinct

the following separation techniques are common for mixtures

1) filtration: if the two components are forming heterogeneous mixture we can separate them by filtration.

2) boiling: if boiling point of one of the components is less than other

3) magnetic separation: if one of the component is magnetic

4)sieve method: for solid components with difference in size of particles

5) hand picking

Thus the correct match will be as shown in the figure


3 0
3 years ago
Knowing that the reaction of potassium in water is extremely exothermic, what would be the problem with adding a large piece of
Alenkasestr [34]

Answer:

e  a s p o r t s

Explanation:

Its in the game

7 0
3 years ago
Which three types of electromagnetic waves have longer wavelengths than the waves that make up visible light ?
GenaCL600 [577]

On one end of the electromagnetic spectrum are radio waves, which have wavelengths billions of times longer than those of visible light. On the other end of the spectrum are gamma rays, with wavelengths billions of times smaller than those of visible light.

7 0
4 years ago
Read 2 more answers
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