For neutralizing bases, as catalysts, as dehydrating agents etc.
Yes it is possible to use tannic acid in place of gallic acid for calculation of gallic acid equivalents.
No, it is not possible to convert sulfuric acid to nitrous acid.
Now that global warming is in vogue in the media, acid rain is no longer mentioned as a possible crisis for our planet
Yes, this is possible; the classic Manheim process use this reaction.
Gibberellic acid, but you do not need very much because too much Gibberellic acid will prevent germination.
It's possible to use several things but most are based around citric acid. Products such as "sour salt" (crystallised citric acid) are available but it's likely confectioners use a mix of sugar, citric acid, tartaric acid and various other items to present the coating in the desired way.
Possible side effects of Hyaluronic Acid Supplements include pain and redness at the injection site. They can also cause increased pressure in the eye after use in eye surgery, and, rarely, allergic reactions.
No, it is not possible.
Yes
Yes it is safe to use, for best usage ingest as soon as possible and as much as you can then drink a bottle of vodka for best use.
what acid do you use to test gold
For the acid test to determine the authenticity of gold, you typically use nitric acid. Nitric acid is used to test the purity of gold based on the reaction it produces with the metal.