Is it true that soaps are salts of sulfonic acids though some have been made from alkyl sulphonates

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?