I think that you will end up with coagulated egg whites. As an added bonus, it'll also be preserved and won't spoil at room temperature.
they will turn blue
It would fizz up and in a couple of days white hard stuff will grow on it.
White wine vinegar would be the best substitute, if you have it on hand.
Since vinegar is an acid it would turn red.
Yes, but since balsamic vinegar is stronger, you'll want to use less than you would if you used white wine vinegar.
Malt vinegar, white wine vinegar, white spirit vinegar. Spirit vinegar doesn't taste as good as any of the brewed vinegars. The closest substitute is probably white wine vinegar mixed with an equal quantity of apple juice. Failing that, mix apple juice with malt vinegar. Red wine vinegar would give a taste that you might not want.
If color is not important, red balsamic vinegar would be the best substitute for white. Otherwise, a sweet white wine would be a possible replacement.
While they both are vinegar, they have very different flavors and it might have a big affect on the overall taste of the finished dish. White vinegar would be the best substitute. Even plain white wine vinegar would be closer.
No. Cooking wine does not contain vinegar, and would introduce too much salt.
it produces sodium ethanoate
The sand would settle to the bottom. water would be in a layer above. vinegar would be at the top.
The commonest type of vinegar used for pickling is either distilled white or malt (brown). Use white vinegar if you don't want malt vinegar to darken the colour of the pickled items (hard-boiled eggs, whole or sliced onions, and other vegetables, etc). The vinegar used to pickle beetroot would not matter as the strong dark redness of the beetroot would override a malt vinegar.