Which of the following precautions should be taken to reduce the risk of chromosome mutations

C) wear a lead protective shield when having teeth XRAYS

Explanation:

and i oop

explanation:

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds