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Setler [38]
3 years ago
12

Draw the main lewis structure of nof. draw nonbonding electrons using the dot notation and bonding electrons as a bond.

Chemistry
2 answers:
navik [9.2K]3 years ago
6 0

solution is attached below

harina [27]3 years ago
5 0

Answer : The Lewis-dot structure are shown below.

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.  The valence electrons are shown by 'dot'.

The given molecule is, NOF

In this molecule, the nitrogen atom is a less electronegative element as compared to oxygen and fluorine. So, the nitrogen is the central atom and oxygen and nitrogen are the neighboring atoms.

As we know that the nitrogen has '5' valence electrons, oxygen has '6' and fluorine has '7' valence electrons.

Therefore, the total number of valence electrons in NOF = 5 + 6 + 7 = 18

According to Lewis-dot structure, there are 6 number of bonding electrons and 12 number of non-bonding electrons.

The Lewis-dot structure are shown below.

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Which of the following statements describes a difference between a chemical change and a physical change in a substance
siniylev [52]

Explanation:

A physical change is one that alters the physical properties of matter (particularly the form and state).

A chemical change is one in which new kind of matter is formed. It is always accompanied by energy changes (evolution or absorption of energy in form of heat or light or both).

Now, the salient differences between physical and chemical changes;

  1. Physical changes are easily reversible whereas chemical changes are not easily reversible.
  2. Physical changes lead to the production of no new kinds of matter whereas chemical changes leads to the production of new kinds of matter.
  3. Physical changes involves no change in mass whereas chemical changes involves change in mass.
  4. Physical changes require little energy whereas considerable amount of energy is needed for chemical changes.
8 0
3 years ago
A chemical reaction occurs when 2 white solids are stirred together they turn into a slushy white solid and the glass jar feels
Anestetic [448]

Answer:

Absorbed, endothermic

Explanation:

Based on the heat of reaction, chemical reactions may be classified as endothermic or exothermic.

In an endothermic reaction, heat is absorbed from the surrounding. As heat is absorbed from the surrounding, the reaction vessel feels cool when touched.

On the other hand, in an exothermic reaction, heat is given out by the system to the surrounding and the reaction vessel feels hot when touched.

Hence the reaction is endothermic and energy is absorbed during the reaction.

4 0
3 years ago
How are planes contrail lines similar to clouds
Tom [10]
Both are mainly composed of droplets of condensed water
8 0
3 years ago
In a chemical change
Lana71 [14]

Answer:

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

Explanation:

4 0
3 years ago
What is Oxidation state of sulphur in Na2S4O6?Help me..​
quester [9]

Answer:

oxidation state of sulphur=x

Explanation:

Na2S4O6=2[+1]+4x+6[-2]=0

                 +2+4x-12=0

                     4x-10=0

                           4x=10

                            x=10/4=2.5

6 0
3 years ago
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