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valentina_108 [34]
3 years ago
12

An electron is on a -2.5 eV energy level. the electron is stuck by a 2.5 eV photon. What will most likely happen?

Chemistry
1 answer:
Luba_88 [7]3 years ago
3 0
The answer would be 0
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How many grams of iron can be made with 21.5g of Fe2O3
SIZIF [17.4K]

The mass (in grams) of iron, Fe that can be made from 21.5 g of Fe₂O₃ is 15.04 g

We'll begin by writing the balanced equation for the reaction. This is given below:

2Fe₂O₃ -> 4Fe + 3O₂

  • Molar mass of Fe₂O₃ = 159.7 g/mol
  • Mass of Fe₂O₃ from the balanced equation = 2 × 159.7 = 319.4 g
  • Molar mass of Fe = 55.85 g/mol
  • Mass of Fe from the balanced equation = 4 × 55.85 = 223.4 g

From the balanced equation above,

319.4 g of Fe₂O₃ decomposed to produce 223.4 g of Fe

<h3>How to determine the mass of iron, Fe produced</h3>

From the balanced equation above,

319.4 g of Fe₂O₃ decomposed to produce 223.4 g of Fe

Therefore,

21.5 g of Fe₂O₃ will decompose to produce = (21.5 × 223.4) / 319.4 = 15.04 g of Fe

Thus, 15.04 g of Fe were produced.

Learn more about stoichiometry:

brainly.com/question/9526265

#SPJ1

5 0
1 year ago
HELPPPP PLEASEEE
Igoryamba
Atomic mass is the answer!!
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6 0
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Year/ Distance (cm)
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Answer:

the answer is C

Explanation:

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HELP ME PLEASE!!!
krok68 [10]

Answer:

Br (Bromine)

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Explanation:

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The ground electron configuration of a Tc atom is (Kr) 5s2 4d5. What is the electron configuration of a Tc3 ion
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Answer:

2:1<em><u> </u></em><em><u> </u></em><em><u>of </u></em><em><u> </u></em><em><u>Tc </u></em><em><u>in </u></em><em><u>the</u></em><em><u> </u></em><em><u>periodic</u></em><em><u> table</u></em>

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2 years ago
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