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Gennadij [26K]
2 years ago
12

Points + Brainalist

Chemistry
1 answer:
Lorico [155]2 years ago
4 0

Answer:

I think A it looks to be the answer

Explanation:

sorry if wrong

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Below is the Lewis structure of the hydrogen cyanide molecule.
lianna [129]

Answer :

The number of bonding pairs of electrons around the hydrogen atom = 2

The number of lone pairs of electrons around the hydrogen atom = 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 given molecule is, HCN

As we know that carbon has '4' valence electrons, hydrogen has '1' valence electrons and nitrogen has '5' valence electrons.

Therefore, the total number of valence electrons in HCN = 1 + 4 + 5 = 10

According to Lewis-dot structure we conclude that, there are 8 number of bonding electrons and 2 number of non-bonding electrons.

The number of bonding pairs of electrons around the hydrogen atom = 2

The number of lone pairs of electrons around the hydrogen atom = 0

8 0
3 years ago
How many nickel atoms are contained in a 92.02 mole sample
Vitek1552 [10]

Answer:

By definition, and this is what Avogadro's constant tells you, 1 mole of nickel must contain 6.022⋅1023 atoms of nickel.

Explanation:

6 0
2 years ago
Who has a higher frequency X-ray or, radio waves?
tester [92]

Answer:

radio waves

Explanation:

6 0
3 years ago
Which of the following is an example of pure research? searching for fuels other than gasoline to power cars producing heat-resi
Sliva [168]
I think the correct answer would be the third option. An example of a pure research would be creating synthetic elements to study their properties. Pure research is also known as fundamental or basic research. It has an exploratory nature wherein it is done without any end use in mind. It is mostly out of the curiosity or intuition of a researcher. Most of the study under this type is aiming to advance an existing knowledge by explaining or identifying the relationship of the variables being studied. It is aimed at improving theories in order to the understanding of a specific  phenomenon. 
4 0
3 years ago
If the moon is half full on January 2, on approximately what date will it next become full?
slavikrds [6]
The answer is C pulled up a little moon calendar

7 0
3 years ago
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