toxic waste sour candy, the sourest candy in the world. I guess it counts for substance too.
it's citric acid toxic waste uses it that's why it's sour
Might be vine acid
Some foods that are sour are lemons, grapes, and tamarind. Some types of oranges and some melon can also have a sour taste to them.
blue clues
Solid. Most likely a crystalline.
The most abundant metal in the Earth's crust is iron. The most abundant element in the Earth's core is oxygen.
They are sour
i really don't know what it is, but the most sour substance i've ever tasted was kool aid powder
Many of the Kool-Aid powders.
Yes, hydroxide is a sour substance.
Sour-tasting substances will be acidic, or have a pH of <7
WATER
glycerine
diamond
water is the and most found substance also earth and air
Tart
An ascecent is a substance likely to become sour.
your fat mom.
An Acid is a substance that tastes sour and Base is a substance that tastes bitter and feels slippery.