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4 years ago

What is the oxidation number of nitrogen in aluminum nitride, aln?

1 answer:

4 0

Please refer to this. Here is the oxidation number of nitrogen in aluminum nitride, aln. Since AlN has 0 charge and Al has +3 charge; charge for N = 0 - (+3) = -3. Hope this is the answer that you are looking for. Have a great day ahead!

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What enrollment is a girl ridding a bike??

Hitman42 [59]

Answer:

It would be thermal energy.

Explanation:

Thermal energy is the energy transfer of heat which is created while doing physical activity.

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3 years ago

Draw a Lewis structure for H2O that obeys the octet rule if possible and answer the following questions based on your drawing. 1

Nataliya [291]

This is an incomplete question, here is a complete question.

Draw a Lewis structure for H₂O that obeys the octet rule if possible and answer the following questions based on your drawing.

For the central oxygen atom:

The number of lone pairs =

The number of single bonds =

The number of double bonds =

Answer : The Lewis structure for H₂O is shown below.

For the central oxygen atom:

The number of lone pairs = 4

The number of single bonds = 2

The number of double bonds = 0

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The representation of valence electrons of an atom by dots around the symbol of an element is said to be the Lewis-dot symbol.

In the representation of Lewis-symbol, one electron dot must put on each side of the element symbol then paired the electrons.

The given molecule is, $H_2O$

As we know that hydrogen has '1' valence electrons and oxygen has '6' valence electrons.

Therefore, the total number of valence electrons in $H_2O$ = 2(1) + 6 = 8

According to Lewis-dot structure, there are 4 number of bonding electrons and 4 number of non-bonding electrons.

For the central oxygen atom:

The number of lone pairs = 4

The number of single bonds = 2

The number of double bonds = 0

5 0

3 years ago

The atom of element has 25 electrons and 30 neutrons write down its atomic number and mass number.

den301095 [7]

Answer:

Atomic number = 25 protons

Mass number = ( 25 + 30 ) = 55

8 0

4 years ago

Read 2 more answers

Shale forms from tiny particles of which material?

miskamm [114]

Answer:

a. mica

Explanation:

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3 years ago

What information about a chemical solution can be inferred from knowing its pH value?

Pepsi [2]

Answer:

See the answer below

Explanation:

The information than can be inferred from knowing the pH value of a chemical solution is the hydrogen or hydroxyl ion concentration of the solution.

The pH of a solution is the degree of acidity or alkalinity of the solution. Mathematically, the pH of a solution is expressed as:

pH = $-log_{10}[H^+]$ where $[H^+]$ = hydrogen ion concentration.

Also,

pH = 14 - pOH, where pOH = $-log_{10}[OH^-]$

The more the $[H^+]$ of a solution, the lower the pH, and the more the $[OH^-]$ of a solution the higher the pH. The pH value ranges from 0 - 14 with 7 being a neutral pH.

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4 years ago