the one without grapes
yes
yes and peanutbutter
40%
no, balsamic vinegar is made from unfermented grape juice, called must.
acidic acid
There is a site called Resveratrol Products, and they give a lot of good information including how to properly read the ingredients label and what to look for in the ingredients. They also have a product which contains whole dried muscadine grape, which is the grape with the highest amount of natural resveratrol, as well as a high purity trans-resveratrol from another source.
Grape Juice
Yes gold grape juice is yellow
Gold grape juice is orange.
No. Grape juice is a mixture of many compounds.
No. If you mix yeast and grape juice you get wine.