BRAINLIEST!! PLS HELP!!

How many electrons are transferred during the formation of one molecule of al2o3?

lukranit [14]

Answer:
Six electrons are transferred in the formation of Al₂O₃.

Explanation:
Aluminium metal and Oxygen react to form Al₂O₃ as,

2 Al + 3/2 O₂ → Al₂O₃

Oxidation number of Al on left hand side is zero, while than on right hand side in Al₂O₃ is +3. Means it has lost 3 electrons per one atom and six electrons per two atoms. Also, the oxidation number of O at left hand side in O₂ is zero, while that in Al₂O₃ it is -2 per atom and -6 per 3 atoms.

So, two Al atoms have lost 6 electrons and 3 O atoms have gained six electrons.

4 0

3 years ago

Which side of the electromagnetic spectrum has shorter wavelengths

kondaur [170]

Answer:blue blue blue

Explanation:

Just answered it and got it right

7 0

3 years ago

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An invasive species is a species that disrupts the ecosystem into which it is introduced by displacing species.

sveta [45]

Invasive species can do all sorts of damage to an existing ecosystem, including changing habitats and starving native animals of food and resources.

<h3>What is an invasive species?</h3>

An invasive species is an organism that causes ecological or economic harm in a new environment where it is not native.

Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. The invasive species may provide little to no food value for wildlife. Invasive species can also alter the abundance or diversity of species that are important habitats for native wildlife.

Learn more about the invasive species here:

brainly.com/question/21452505

#SPJ1

7 0

2 years ago

Write a balanced half-reaction describing the reduction of aqueous iron(III) cations to aqueous iron(II) cations.

melamori03 [73]

Answer:

The answer to your question is:

Explanation:

Iron (III) ⇒ Iron (II)

Fe⁺³ + 1e⁻ ⇒ Fe⁺²

6 0

4 years ago

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Two identical bottles at the same temperature contain the same gas. If bottle B has twice the volume and contains half the numbe

yuradex [85]

Answer:

The ratio of pressure in bottle B to that of bottle A is 1 : 4

Explanation:

We'll be by calculating the pressure in both bottles. This is illustrated below below:

For A:

Temperature (T) = T

Volume (V) = V

Number of mole (n) = n

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =...?

PV = nRT

PV = n x 0.0821 x T

Divide both side by V

P = nT0.0821/V

Therefore, the pressure, in bottle A is

PA = nT0.0821/V

For B:

Temperature (T) = the same as that of A = T

Volume (V) = twice that of A = 2V

Number of mole (n) = half that of A = ½n

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =...?

PV = nRT

P x 2V = ½n x 0.0821 x T

Divide both side by 2V

P = ½n x 0.0821 x T/2V

P = nT0.0821/4V

Therefore, the pressure in bottle B is:

PB = nT0.0821/4V

Now, we can obtain the ratio of pressure in bottle B to that of bottle A as follow:

Pressure in bottle A (PA) = nT0.0821/V

Pressure in bottle B (PB) = nT0.0821/4V

PB/PA = nT0.0821/4V ÷ nT0.0821/V

PB/PA = nT0.0821/4V x V/nT0.0821

PB/PA = 1/4

Therefore, the ratio of pressure in bottle B to that of bottle A is 1 : 4.

3 0

4 years ago