Identify the spinal cord area (cervical or thoracic) that the preganglionic axons exit in the anterior (ventral) root.

Anterior horn/Intermediate horn

Explanation:

For motor neurons affecting skeletal muscle, these are the levels in the anterior horn and preganglionic autonomic neurons that are screened at intermediate horn. The axons of both these neurons leave the medulla through ventral roots and their activity is regulated by reflex circuits and downward pathways whose fibers are located in the white matter.

the actual answer was 160934

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