the tea lightens
Universal indicator turns red when added to vinegar, indicating that the vinegar is acidic.
The leaf should turn blue-black when iodine is added, indicating the presence of starch.
Methyl orange will turn red in vinegar due to its acidic pH.
it turns blue litmus paper red
Because Vinegar is an acid, the litmus paper would turn red
If the vinegar is strong enough to be below 4.5 pH the litmus paper will turn (or stay) red.
Iodine turns a dark blue or black color when added to starch. This reaction is often used as a test to detect the presence of starch in a solution.
It turns greenLOL
To turn green black, add black.
Vinegar is an acid (acetic acid). It will oxidize metals (causing them to rust)...which can look black.
It will turn a yellowish orange due to the acetic acid in vinegar. Carboxylic acids are weak by nature.
black