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3 years ago

Please help. I’m terrible with weather

Chemistry

1 answer:

Harrizon [31]3 years ago

4 0

first know the difference between the 4 seasons or weather's that occur and that will help get through

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Draw the best Lewis structure for NH3 by filling in the bonds, lone pairs, and formal charges. (Assign bonds, lone pairs, radica

kiruha [24]

Answer : The Lewis-dot structure of $NH_3$ is 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.

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

The given molecule is, $NH_3$

As we know that hydrogen has '1' valence electron and nitrogen has '5' valence electrons.

Therefore, the total number of valence electrons in $NH_3$ = 5 + 3(1) = 8

According to Lewis-dot structure, there are 6 number of bonding electrons and 2 number of non-bonding electrons.

Now we have to determine the formal charge for each atom.

Formula for formal charge :

$\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}$

$\text{Formal charge on N}=5-2-\frac{6}{2}=0$

$\text{Formal charge on }H_1=1-0-\frac{2}{2}=0$

$\text{Formal charge on }H_2=1-0-\frac{2}{2}=0$

$\text{Formal charge on }H_3=1-0-\frac{2}{2}=0$

Hence, the Lewis-dot structure of $NH_3$ is shown below.

3 0

3 years ago

MgS is the chemical formula for the ionic compound named

irina1246 [14]

Answer:

Magnesium Chloride

Explanation:

3 0

2 years ago

Which is the scientific notation for 8,002.5 seg?

Blizzard [7]

8,002.5 would be written as
8.0025 x 10 and 3
because you move the decimal place 3 times to the left.

7 0

3 years ago

A cast fossil is formed when

Liono4ka [1.6K]

The answer is D)
<span>when the remains of a living thing are preserved and turned into rock </span>

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3 years ago

Some bleaches contain hydrogen peroxide as their active ingredient, while others contain sodium hypochlorite. Both these chemica

pshichka [43]

B) oxygen, because oxygen is the only element that is in both chemical formulas.

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3 years ago