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Marianna [84]
3 years ago
14

This man is using a block and tackle to lift a heavy bale of cotton. the block and tackle contains which simple machine?

Chemistry
1 answer:
AlladinOne [14]3 years ago
8 0
The simple machine used is called atwood machine. 
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Answer:

3 bonds are needed.

Explanation:

The electrons that are involved in chemical bonding are those in the outer shell of the highest energy level of the atom. The electron configuration of nitrogen (N) is 1s²2s²2p³. That means thy at each nitrogen atom has 5 valence electrons: 2 electrons in the 2s orbital and 3 electrons in the 2p orbital. To fullfil the octet, each nitrogen atom needs 3 electrons. So, they can share each other 3 electrons to form 3 simple bonds. Therefore, the nitrogen molecule (N₂) has 3 bonds involving 6 bonding electrons or a triple bond.

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Answer:

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Try to see if this helps

3 0
3 years ago
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