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Marysya12 [62]
3 years ago
11

Why is the chemical formula magnesium sulfide written as MgS and NOT Mg2S2?

Physics
2 answers:
Lesechka [4]3 years ago
6 0

Because you need only 1 atom of magnesium and 1 atom of sulfur to produce magnesium sulfate. Writing a two after each is not correct as that would be dimagnesium disulfide.

myrzilka [38]3 years ago
6 0

Answer:

the answer is c

Explanation:

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To calculate the horizontal velocity component, use the cosine identity. where cos A = a / h
where A is the angle the golfer hits the ball
a is the horizontal component velocity
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so a = h cos A
a = 31 cos 35
a = 25.4 m/s
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Given a 45 45 90 prism with index of 1.5, immersed in air. The hypotenuse acts as the reflecting face by TIR. A ray of light ent
Genrish500 [490]

Answer:

83.6°

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For the ray to be totally internally reflected, at the boundary, the angle of refraction is 90. Using the law of refraction where

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So, substituting these values into the equation,

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