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jeka57 [31]
3 years ago
15

Why were only five of the planets discovered by the 1700's?

Chemistry
2 answers:
Strike441 [17]3 years ago
3 0


because people didn't have the right equipment to find more... hope this helped

 

Ratling [72]3 years ago
3 0

limited resources. didn't have the technology or resources needed to see the planets. they didn't even know the world was round lol
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Answer:

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Explanation:

To solve this question we must use the equation:

Kw = [H+] [OH-]

<em>Where Kw is the equilibrium dissociation of water = 1x10-14</em>

<em>[H+] is the molar concentration of hydronium ion = 1x10-4M</em>

<em>[OH-] is the molar concentration of hydroxyl ion</em>

<em />

Replacing:

1x10-14= 1x10-4 [OH-]

<em>[OH-] = 1x10-14 / 1x10-4M</em>

<em>[OH-] = 1x10-10 M</em>

Right option is:

<h3>C) 1 x 10-10 M </h3>

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