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mart [117]
3 years ago
9

Which of these, all of which include earth, most likely contains the most dark matter

Chemistry
1 answer:
mixer [17]3 years ago
8 0

Answer:

Plasma

Explanation:

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DENIUS [597]

frequency.

quantity.

thickness.

body.

closeness.

concretion.

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3 0
3 years ago
Calculate the speed of a marble that rolls 9 cm in 4 seconds
cupoosta [38]

Answer:

2.25

Explanation:

9/4

6 0
3 years ago
What volume of 0.585 m ca(oh)2 would be needed to neutralize 15.8 l of 1.51 m hcl?
SpyIntel [72]
When the balanced reaction equation is:

2HCl(aq) + Ca(OH)2(aq) → CaCl2(aq) + 2H2O(l)

from the balanced equation, we can get the molar ratio between HCl & Ca(OH)2

2:1

∴ the volume of Ca(OH)2 = 15.8 L HCl * 1.51 m HCl * (1mol Ca(OH)2/ 2mol HCl) *                                           (1L ca(OH)2/0.585 mol Ca(OH)2 

                                          = 20.4 L
8 0
3 years ago
When an atom gives off energy in the form of light, a. it becomes excited. b. it becomes more stable. c. it returns to ground st
egoroff_w [7]
Answer is only B.
<span>it becomes more stable</span>

6 0
3 years ago
How many electrons does Fe-55 have
Butoxors [25]

Iron-55 (55Fe) is a radioactive isotope of iron with a nucleus containing 26 protons and 29 neutrons.

5 0
3 years ago
Read 2 more answers
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