Answer:
I think it's either true or false
Explanation:
Isopropyl is: CH3 - CH - CH3
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Heptane is: CH3 - CH2 - CH2 - CH2 - CH2 - CH2 - CH3
Then 2,2 isopropyl heptane is:
CH3 - CH - CH3
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CH3 - C - CH2 - CH2 - CH2 - CH2 - CH3
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CH3 - CH - CH3.
There you can count that the longest carbon chain has 8 carbon atoms.
So the right name is of an octane.
I will rearrange the chain to show the 8 carbon chain in a row:
CH3 CH3
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CH3 - CH - C - CH2 - CH2 - CH2 - CH2 - CH3
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CH3 - CH - CH3
Now, you can see that the right name is 3 isopropyl - 2, 3 dimethyl octane
Answer: False
Explanation:
Unguided medium employs an antenna for transmitting through air or vacuum.
For guided mediums the transmission is in the form of twisted copper wires, shielded twisted copper wire and optical fibres. They henceforth do not depend upon antennas for transmission through air using antennas.
Answer:
True ( A )
Explanation:
Windows passwords are usually stored in a hash file in one of the system directories. one of the system directories where windows passwords hash files are stored is windows SAM file or security account account manager.
The storage of the passwords in the system directories helps/enables the users to login to the computers securely, therefore avoiding unnecessary security breach
D. Components. Hope this helpsssssss
