Learn Italian: A Roma c'è tanto sole quanto a Napoli oggi. - In Rome there is as much sun as in Naples today.

No, because sole (sun) is a noun. When you are comparing the amount of a noun (like "as much sun" or "as many books"), you must use tanto... quanto. You only use così... come with adjectives (like "as hot as") or adverbs.

Do tanto and quanto change their endings to match the noun?

Yes! When comparing nouns, tanto and quanto act like adjectives and must match the noun's gender and number. Since sole is masculine singular, both words end in -o. If you were comparing a feminine plural noun like "cars" (macchine), you would say tante macchine quante.

Why does the sentence use A Roma and a Napoli instead of using the word "in"?

In Italian, you always use the preposition a when saying you are "in" or going "to" a specific city. The preposition in is reserved for countries, states, regions, and large islands (for example, in Italia or in Toscana).

What exactly is c'è short for?