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"Too" is an adverb which is often translated as "también", and "too much" is an adverb which is often translated as "demasiado". Learn more about the difference between "too" and "too much" below.
too(
tu
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
1. (as well)
2. (excessive)
a. demasiado 
If you add too much sugar, the cake won't taste good.Si añades demasiado azúcar, el pastel no sabrá bien.
too much( 
tu
muhch
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
1. (quantity)
An adjective is a word that describes a noun (e.g., the big dog).
2. (quantity)
d. muchísimo 
A three-course meal? That's too much for me.¿Una comida de tres platos? Me parece muchísimo.