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tealmermaid534
No, in a chemical formula you have to include both a positive and negative element.
Since both carbon and chloride have a positive charge, they wouldn’t be able to bond and create a compound.

This reason makes this an untrue statement.
XSadness
Hello.

The answers are 

 nitrogen monoxide

 copper (II) carbonate

 chloric acid

Those all make up a vaild chemical formula.

Have a nice day