how chemicals are used withing the chemical making process. What role do chemical engineers play in the final product?

The main role of chemical engineers is to design and troubleshoot processes for the production of chemicals, fuels, foods, pharmaceuticals, and biologicals, just to name a few. They are most often employed by large-scale manufacturing plants to maximize productivity and product quality while minimizing costs.

Explanation:

fe 55.85 g/mol and h2o 18.02 g/mol.