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Nady [450]
3 years ago
11

What type of compound does the formula, Fe2O3, represent ?

Chemistry
1 answer:
seraphim [82]3 years ago
8 0

It is:
Iron (III) Oxide

As a transition metal iron can have two oxidation states <span>F<span>e+</span>2</span> ferrous or <span>F<span>e+</span>3</span>ferric.

Oxygen has an oxidation state of <span>O<span>−2</span></span>.

In the case of <span>F<span>e2</span><span>O3</span></span> the oxidation states are balanced when 2 <span>F<span>e<span>+3</span></span></span> ions pair with 3 <span>O<span>−2</span></span>.

<span>F<span>e2</span><span>O3</span></span> is Iron (III) oxide where the roman numeral informs us that the charge on the iron is +3, the common name would be ferric oxide.

If the iron was <span>F<span>e<span>+2</span></span></span> and the oxygen <span>O<span>−2</span></span>, the formula would be FeO Iron (II) oxide or ferrous oxide.

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Answer:

c) parallel to the wire

Explanation:

The concept is based on right-hand thumb rule that states that the thumb points in the direction of the current and the fingers will represent the direction of the lines of magnetic force.

As the current is moving in the east-west direction. Using the right-hand thumb rule, the direction of the magnetic field at a point below the wire is from north to south. So, when viewed from the west end, the magnetic field at a point will be anti- clockwise.

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3 years ago
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7 0
2 years ago
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3 0
3 years ago
If a certain gas occupies a volume of 19 L when the applied pressure is 9.5 atm, find the pressure when the gas occupies a volum
kakasveta [241]

Answer: 37.6 atm

Explanation:

Given that,

Initial volume of gas (V1) = 19L

Initial pressure of gas (P1) = 9.5 atm

Final volume of gas (V2) = 4.8L

Final pressure of gas (P2) = ?

Since pressure and volume are given while temperature remains the same, apply the formula for Boyle's law

P1V1 = P2V2

9.5 atm x 19L = P2 x 4.8L

180.5 atm•L = 4.8L•P2

Divide both sides by 4.8L

180.5 atm•L/4.8L = 4.8L•P2/4.8L

37.6 atm = P2

Thus, the final pressure is 37.6 atmospheres.

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3 years ago
If a neutral atom has 10 proton how many electrons would it have?
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It should have 10 electrons
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3 years ago
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