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Aleksandr-060686 [28]
2 years ago
11

Is this chemical equation balanced? Yes or no

Chemistry
2 answers:
ZanzabumX [31]2 years ago
8 0

Answer:

<em><u>Yes, the chemical equation is balanced. </u></em>

Explanation:

As, No.of Reactants=No.of Products.

shepuryov [24]2 years ago
5 0

Answer:

Yes

Explanation:

4Fe+3O2

4Fe

3O2

So therefore 6 Oxygen atoms

2Fe2

2x2

Therefore 4 Iron atoms

2O3

2x3

Therefore 6 Oxygen atoms

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Why does the Moon orbit Earth instead of the Sun?
Vera_Pavlovna [14]
Gravity depends on distance and the moon is closer to earth
4 0
3 years ago
If the solubility of a gas is 10.5 g/L at 525 kPa pressure, what is the solubility of the gas when the pressure is 225 kPa? Show
Talja [164]

Answer:

4.5 g/L.

Explanation:

  • To solve this problem, we must mention Henry's law.
  • Henry's law states that at a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.
  • It can be expressed as: P = KS,

P is the partial pressure of the gas above the solution.

K is the Henry's law constant,

S is the solubility of the gas.

  • At two different pressures, we have two different solubilities of the gas.

<em>∴ P₁S₂ = P₂S₁.</em>

P₁ = 525.0 kPa & S₁ = 10.5 g/L.

P₂ = 225.0 kPa & S₂ = ??? g/L.

∴ S₂ = P₂S₁/P₁ = (225.0 kPa)(10.5 g/L) / (525.0 kPa) = 4.5 g/L.

8 0
3 years ago
Why is the piece of coal layered?
marysya [2.9K]

Answer:

Coal is layered because it is a type of sedimentary rock

Explanation:

3 0
3 years ago
Similar rock formations have been discovered in the United States and Portugal. These rock formations were formed at the same ti
Ray Of Light [21]

theAnswer:A

Explanation:

6 0
2 years ago
An acid sample of an unknown concentration is contained in a erlenmeyer flask. Which technique below would be best suited to ana
Ivenika [448]

Answer:

Titration

Explanation:

The best technique which can be used to determine the number of moles of the HCl in the sample is titration.

The given amount of HCl solution must be titrated with known concentration of the base like NaOH.

The volume of NaOH required must be noted also.

According to the reaction,

NaOH+HCl\rightarrow NaCl+H_2O

At equivalence point

Moles of HCl = Moles of NaOH

Considering:-

Moles of HCl=Molarity_{NaOH}\times Volume_{NaOH}

Thus, in this way, moles of HCl can be determined.

4 0
3 years ago
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