Classify these substances as acidic, basic, or neutral:
vinegar, baking soda, tomato juice, sugar

Acidic substance(s):
Vinegar contain acetic acid 
Tomato Juice contain citric acid

Basic substance(s):
Baking Soda contains Sodium Carbonate

Neutral Substance(s):
In the process of producing sugar, the sugar cane juice is acidic but goes through a process where it's acidity is neutralized and as such the crystalline sugar ends up neutral

Cis correct i think