No. Relatively few languages do this, though a few, like Romanian, do this occasionally (the Romanian alphabet has a letter Ă / ă that is pronounced as the schwa sound).
No. The syllable -ive is usually considered a short I, not a schwa.
The word "lecithin" is pronounced with the accent on the first syllable: "LEHS-uh-thin" (short E, schwa, schwa) or"LEH-sih-thin" (short E, short I, schwa). Pronounciation guides do not agree on whether the S sound of the C is part of the first or second syllable.
Only one in the last syllable, unless you have some kind of a southwest accent.
The word 'vendor' is pronounced VEN/da. There is no rhotic accent on the final syllable, but rather, a schwa.
It is in the last syllable, -a is a schwa.
It is 'u'. The schwa sound is usually produced in a weak syllable.
In the word "emotion," the schwa syllable falls on the first syllable: e-MOH-shun. The schwa sound is represented by the "uh" sound in this word.
It is in the second syllable: -a is a schwa.
That is right; the second syllable is pronounced with a schwa.
Short a, schwa, long e, accent on the first syllable PAN - uh - plee
The schwa is the upside-down 'e' in phonics, and is used for vowels that makes sounds that are not their long and short sounds. I believe the schwa in 'syllable' is the 'a.' (Sil-AH-bohl).
In the majority pronunciation, the second syllable has a schwa. However, there are some pronunciations where the first and second syllable have the same vowel sound (like "u" in bus), and these pronunciation does not have a schwa.