QUICK ANSWER
"Much" is an adjective which is often translated as "mucho", and "too many" is an adjective which is often translated as "demasiados". Learn more about the difference between "much" and "too many" below.
much(
muhch
)An adjective is a word that describes a noun (e.g., the big dog).
1. (a lot)
a. mucho (with uncountable nouns)
I don't have much money, but you can borrow a dollar.No tengo mucho dinero, pero te presto un dólar.
I have never eaten much sugar.Nunca he comido mucha azúcar.
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
a. mucho
I like this job much better than my last one.Este trabajo me gusta mucho más que el anterior.
3. (frequently)
A pronoun is a word that stands in for a noun (e.g., she).
too many(
tu
meh
-
ni
)An adjective is a word that describes a noun (e.g., the big dog).
a. demasiados
It is hard to choose what to do at this amusement park. There are too many options!Es difícil escoger qué hacer en este parque de atracciones. ¡Hay demasiadas opciones!