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Mariana [72]
3 years ago
11

What is the weight of dark matter​

Chemistry
2 answers:
lesya692 [45]3 years ago
7 0
The answer is 1 micrograms u could of google it anyways
Ostrovityanka [42]3 years ago
3 0

Answer:

Knowing this, researchers from the University of Southern Denmark decided to investigate the size of these hypothetical hidden particles. According to the team, dark matter could weigh more than 10 billion billion (10^9) times more than a proton.

Explanation:

If this is true, a single dark matter particle could weigh about 1 microgram, which is about one-third the mass of a human cell (a typical human cell weighs about 3.5 micrograms), and right under the threshold for a particle to become a black hole.

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Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. One of
pochemuha

Answer:

1,4-dihydro = 113 kJ·mol⁻¹

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Explanation:

In 1,4-dihydronaphthalene, the 2,3-double bond is isolated from the benzene ring.

In 1,2-dihydronaphthalene, the 3,4-double bond is conjugated with the benzene ring.

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The heat of hydrogenation of 1,2-dihydronaphthalene is therefore less than that of the 1,4-isomer when each is hydrogenated to the common product, 1,2,3,4-tetrahydronaphthalene.

8 0
2 years ago
What element has the electron configuration below? *<br><br> please help me
timofeeve [1]

Answer:

Symbol Ar

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Explanation:

The 6 is small and will be placed in top but I don't have the option that's why I wrote like that

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Answer:

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