Yes it is one syllable. Every word has at least one syllable.
Satisfactory is stressed on the third syllable. A simple way of testing which syllable is stressed is by saying the word aloud. Look for the syllable that you naturally emphasise more in your speech.
dis- SAT - is - fied
Example: Satisfaction would be written like this. Sat|is|fact|ion
It is pronounced as "sat-ahyr." The emphasis is on the first syllable.
They are all one syllable words.
A closed syllable. An open syllable. A vowel-consonant-e syllable. A vowel team syllable. A consonant-le syllable. An r-controlled syllable.
The second syllable of unique is a stressed syllable.
First syllable.
there are three in the word syllable
A weak syllable is unstressed. A strong syllable carries the stress.
An unstressed syllable is like the first syllable in around. A-round has the syllable as stronger and therefore stressed but the first syllable (which is "a") is unstressed.
The first syllable is accented.