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Alik [6]
3 years ago
10

What is the chemical formula for iron(2) oxide

Chemistry
1 answer:
solmaris [256]3 years ago
7 0
Iron (II) oxide is composed of iron with an oxidation number of +2 (shown by the II after iron) and an oxygen that has an oxidation number of -2 (oxygen almost always has an oxidation state of -2).  Since the anion and cation both have a charge of +or- 2, they bond with each other with a 1 to 1 ratio and the formula should be FeO

I hope this helps.  Let me know if anything is unclear.
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Semenov [28]

Answer:

The correct answer is the a=heat

Explanation:

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The correct answer is the a=heat

5 0
3 years ago
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What is the mass of 1.6x1020 molecules of carbon dioxide?
valentina_108 [34]

Answer:

1.2*10^{-2} g

Explanation:

1 mol - 6*10^{23} particles

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8 0
3 years ago
A 4.0 L container holds a sample of hydrogen gas at 306 K and 150 kPa. If the pressure increases to 300 kPa and the volume remai
riadik2000 [5.3K]

Answer:

612 K

Explanation:

From the question given above, the following data were obtained:

Initial temperature (T₁) = 306 K

Initial pressure (P₁) = 150 kPa

Final pressure (P₂) = 300 kPa

Volume = 4 L = constant

Final temperature (T₂) =?

Since the volume is constant, the final (i.e the new) temperature of the gas can be obtained as follow:

P₁ / T₁ = P₂ / T₂

150 / 306 = 300 / T₂

Cross multiply

150 × T₂ = 306 × 300

150 × T₂ = 91800

Divide both side by 150

T₂ = 91800 / 150

T₂ = 612 K

Thus, the new temperature of the gas is 612 K

4 0
3 years ago
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Alexeev081 [22]
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6 0
3 years ago
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Leto [7]

Answer:

Different types

Explanation:

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