Hi, I'm new to this forum, hoping I get a good response from this first post.
My question is: how do I produce a harmless coloured gas from combining two or more liquids (also preferred relatively harmless)? The reason I ask, I wish I could, but I cannot give precisely, but is related to a project I'm doing for a school.
I've applied my GCSE chemistry (getting foggier) and the closest we got to something was using acids to produce (colourless) carbon dioxide. Google only gives me information on a kind of fractional distillation as far as I could see, so I've come here!