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suter [353]
3 years ago
6

Please help :,) I’m being timed

Chemistry
1 answer:
vova2212 [387]3 years ago
6 0

Answer:

B

Explanation:

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densk [106]

Answer:

i really have no clue

Explanation:

8 0
2 years ago
1.A space shuttle's wings are useless as it travels around the exosphere. Explain, in your own words, why the wings are so usele
Andrews [41]

Thrust acts on the spacecraft and propels in the space.

<h3>How space shuttles move?</h3>

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6 0
2 years ago
To three significant digit,what is the mass percentage of iron in the compound Fe2O3​
svlad2 [7]

69.9%

Explanation:

To find the mass percentage of iron in the compound in Fe₂O₃, we would go ahead to express the given molar mass of the iron to that of the compound.

 Mass percentage  = \frac{molar mass of Fe}{Molar mass of Fe_{2}O_{3}  }  x 100

Molar mass of Fe = 55.85g/mol

Molar mass of O = 16g/mol

Molar mass of Fe₂O₃ = 2(55.85) + 3(16) = 159.7‬g/mol

Mass percentage  = \frac{2(55.85)}{159.7}  x  100   = 69.94% = 69.9%

learn more:

Mass percentage brainly.com/question/8170905

#learnwithBrainly

4 0
3 years ago
How many valence electrons configuration of oxygen?
Ganezh [65]
Oxygen had 6 valence electrons
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3 years ago
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I think this one is the organelles.
8 0
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