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dybincka [34]
4 years ago
13

Why does the sky change colors at sunrise and sunset

Chemistry
1 answer:
aniked [119]4 years ago
4 0

Answer:

As the sun's angle changes, (because of the rotation of the earth) the sun slowly begins to shine more or less sunshine slowly. When sunsets and sunrises occur, the color of the sky changes because the sunshine is starting to fade out or in.

I put it in my own words so you don't have to worry about plagiarism :)

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Consider the following reaction methane (CH4) combines with oxygen to create carbon dioxide and dihydrogen monoxide. Which of th
ZanzabumX [31]

Answer:

I believe it is one. I attached what I think is the balanced equation of the problem you gave. The answer is d.1

Explanation:

CH4+4O=CO2+2H2O

5 0
3 years ago
K2so4 is a strong electrolyte. determine the concentration of each of the individual ions in a 0.450 m k2so4 solution.
amid [387]

<em>Answer:</em>

  • Conc. of K+ ions = 0.90 M
  • Coc. of SO4∧-2 = 0.45 M

<em>Explanation:</em>

<em>Data Given:</em>

Conc. of H2SO4 = 0.450

As sulphoric acid is a strong electrolyte, it completely dissociate into ions.

H2SO4 ⇆   2K+   +   SO4∧-2

.450 M K2SO4 means that there is .450 mols of K2SO4 in every liter of solution.

                      K2SO4  :  K+                                          K2SO4  : SO4∧-2

                          1      =     2                                                   1     =    1

                     0.450   =   2× 0.450 = 0.90                     0.450 =  0.450×1 = 0.450

<em> Result:</em>

Conc. of potassium ion will be 0.90M    

Coc. of sulphate ions will be 0.45 M

8 0
3 years ago
56.5 g of sodium nitrate is dissolved in water to make 627 g of solution . what is the percent sodium nitrate in the solution
Tamiku [17]

Answer:

9.01%

Explanation:

The following data were obtained from the question:

Mass of sodium nitrate, NaNO3 = 56.5g

Mass of solution = 627g

The percentage composition of sodium nitrate, NaNO3 in the solution can be obtained as follow:

Percentage composition of NaNO3 = Mass of NaNO3/mass of solution x 100

Percentage composition of NaNO3 = 56.5/627 x 100 = 9.01%

Therefore, the percentage composition of sodium nitrate, NaNO3 in the solution is 9.01%

8 0
3 years ago
Read 2 more answers
1. Rubidium is a soft, silvery-white metal that has two common isotopes, 35Rb and Rb. The atomic mass of
xxTIMURxx [149]

Answer:

85.076572

Explanation:

= (84.911789×0.7217) + (86.909183×0.2738)

= 85.076572

8 0
3 years ago
Convert 5 pounds and 10 ounces into ounces
igomit [66]
90 oz because 5lbs is equal to 80 oz (5*16=80) plus 10oz = 90
7 0
4 years ago
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