Taking photos from Chemistry, The central science: A broad perspective and using them commercially is considered copy-right infringement.
The text of this post and your post from last week closely resembles the foods and fuels section of Chemistry, The central science: A broad perspective. Please be explicit in stating the connection between your post and the before mentioned book. Referencing it at the end is insufficient.
I am sorry for doing so, I referenced them under the reference of the picture but i see that viewers are unable to identify it, I will make sure it does not happen again. Thank you :)