You can use litmus paper or purple cabbage juice to test if a substance is acidic or not. Blue litmus paper turns red under acidic conditions. If you search 'litmus paper chart' online you can find some pretty good charts to find just how acid the substance is.
The stomach has 45 different acids
You can find acids in fruits, for example oranges this contains Citric acid
Carboxilic group -COOH
Tannic acid
yes
yes
OMEGA FATTY ACIDS ARE ESSENTIAL FATTY ACIDS THAT YOUR BODY NEEDS. THESE ACIDS ARE NOT MADE BY THE BODY, YOU HAVE TO GET THEM TRHOUGH FOODS. TO FIND OUT MORE ABOUT OMEGA FATTY ACIDS VISIT http://www.umm.edu/altmed/articles/omega-3-000316.htm.
Kitchens and garages
Viruses
you study.
acetic acid
All acids are chemicals the most common acids you will find at school are: hydrochloric acid (HCl) nitric acid(HNO3) sulphuric acid (H2SO4)