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Sphinxa [80]
3 years ago
15

Which of these equations shows rust, Fe2O3, forming when oxygen, O2, reacts with iron, Fe? Question 10 options: 2Fe2O3 → 3O2 + 4

Fe 4Fe → 3O2 + 2Fe2O3 3O2 + 4Fe → 2Fe2O3 2Fe2O3 + 4Fe → 3O2
Mathematics
1 answer:
mrs_skeptik [129]3 years ago
6 0

Answer:

The rusting of iron is represented by the equation 4Fe +3O2 --> 2Fe2O3.

Step-by-step explanation:

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Percent is amount/ total #×100
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Step-by-step explanation:

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A square is divided by its four lines of symmetry. Triangles of different sizes are formed. How many total triangles are formed?
ss7ja [257]
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2 years ago
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The waitress and the hostess at a restaurant share the tips at the end of the shift. The average amount earned in tips between t
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8 0
3 years ago
What additional information is needed to prove triangle LMN is congruent to triangle KMN using the HL theorem?
IgorC [24]
<h2>Answer:</h2>

∠LMN is a right angle

<h2>Step-by-step explanation:</h2>

If we want to prove that two right triangles are congruent by knowing that the corresponding hypotenuses and one leg are congruent, we begin as follows:

  • Since two legs are congruent and we know this by the hash marks, then the triangle ΔLKN is isosceles.
  • By definition LN ≅ NK
  • If ∠LMN is a right angle, then MN is the altitude of triangle ΔLKN
  • Also MN is the bisector of LK, so KM ≅ ML
  • So we have two right triangles ΔLMN and ΔKM having the same lengths of corresponding sides
  • In conclusion, ΔLMN ≅ ΔKMN
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3 years ago
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