According to the 7th grade science book I teach out of - a pure substance can only be an element or a compound. Tomato Juice is a mixture of tomato solids and water. It cannot therefore be a pure substance using "science language".
However, if I use tomato juice to make chili for example, I certainly want it to be "pure" tomato juice, if you know what I mean.
Ketchup is not considered to be a neutral substance. Ketchup is considered to be an acidic substance with a low pH.
pure substance, propanone
Ketchup is a mixture.
Pure substance
it is a pure substance.... not
Methane is a pure substance.
you can't produce ketchup without even mixing an ingredients on it. So, i therefore suggest that a ketchup is a MIXTURE :)
pure substance
pure substance
Pure Substance
A pure substance is classified by having a definite and constant composition. The substance can be either an element or a compound, but what makes the substance pure, is that it does not vary.
Neon is a pure substance. Elements and compounds are pure substances; mixtures are not.