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Lady_Fox [76]
3 years ago
9

Aluminum and iron (II) oxide combine to form iron and aluminum oxide.

Chemistry
1 answer:
ra1l [238]3 years ago
5 0
2Al + 3FeO —> 3Fe + 1Al(2)O(3)
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The chemical reaction involving an acid and a base or alkali is know as a ​
saul85 [17]

Ans

Neutralization reaction

Explanation:

The meaning is

acid + base = salt + water

5 0
3 years ago
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The pH of a solution changes from 3.00 to 6.00. By what factor does the [H3O+] change?
Naya [18.7K]
:  E) 1000 = 10^3 
6-3 = 3 ==> change is 10^3
HOPE I COULD HELP
4 0
3 years ago
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____________ and _____________ are in all silicate minerals.
alina1380 [7]
I think it is B silicon and iron.
5 0
3 years ago
what is the concentration of an NaOH solution that requires 50 mL of a 1.25 M H2SO4 solution to neutralize 78.0 ml of NaOH​
Dimas [21]

Answer:

  • The answer is the concentration of an NaOH = 1.6 M

Explanation:

The most common way to solve this kind of problem is to use the formula  

  • C₁ * V₁ = C₂ * V₂

In your problem,

For NaOH

C₁ =??     v₁= 78.0 mL = 0.078 L

For H₂SO₄

C₁ =1.25 M     v₁= 50.0 mL = 0.05 L

but you must note that for the reaction of NaOH with H₂SO₄

2 mol of NaOH raect with 1 mol H₂SO₄

So, by applying in above formula

  • C₁ * V₁ = 2 * C₂ * V₂
  • (C₁ * 0.078 L) = (2*  1.25 M * 0.05 L)
  • C₁ = (2*  1.25 M * 0.05 L) / (0.078 L) = 1.6 M  

<u>So, the answer is the concentration of an NaOH = 1.6 M</u>

3 0
3 years ago
The atmosphere is about 21% oxygen. At a pressure of 749 torr, what is the partial pressure of O2?
Kitty [74]

Answer:

157.29 Torr

Explanation:

This question may be solved by the mole fraction.

Mole fraction → Moles of gas / Total moles = Partial pressure of gas / Total pressure

If the atmosphere is about 21% you assume that the mole fraction is 0.21 so:

0.21 = Partial pressure of gas / Total pressure

0.21 = Partial pressure of gas / 749 Torr

Partial pressure of the gas = 749 Torr . 0.21 →  157.29 Torr

3 0
3 years ago
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