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Aliun [14]
3 years ago
14

Why is zinc chloride a substance and not a mixture

Physics
1 answer:
Natalija [7]3 years ago
7 0

It is considered a substance because it has a uniform and definite composition.

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Two students who live on planet X. They want to estimate the circumference. The two students synchronize their watches before on
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Answer:

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Explanation:

If the distance between the students is 600 miles, and this implies in a 3 degree difference in the sun position, that means this 600 miles is related to 3 degrees of the circunference of the planet.

So, to find the whole circunference of the planet, that is, 360 degrees, we just need to use a rule of three:

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