You apparently have no sense of humor.
"Transubstantiation does not change outward characteristics-— appearance, scent, taste, weight, molecular structure, chemical characteristics, etc."
In other words, it doesn't change at all. I know.
It changes substance: what it is (as contrasted to how it appears.) Substantia. Hence the word.
If a person does not believe in the existence of things invisible as well as visible, it’s hard to see how they could be alive at all to spiritual realities taught by Judeo-Christian revelation. But perhaps you don’t claim to be.