Integers Rules ADDITION When we ADD a POSITIVE number we move UP the number line. e.g. (-3) + 7 = 4 When we ADD a NEGATIVE number we move DOWN the number line. e.g. 2 + (-8) = -6 SUBTRACTION When we SUBTRACT a POSITIVE number we move DOWN the number line.ntegers Rules ADDITION When we ADD a POSITIVE number we move UP the number line. e.g. (-3) + 7 = 4 When we ADD a NEGATIVE number we move DOWN the number line. e.g. 2 + (-8) = -6 SUBTRACTION When we SUBTRACT a POSITIVE number we move DOWN the number line.
Commercially sold distilled white vinegar in the US is acetic acid in water, at a concentration of 5% by mass for a pH of around 2.4â2.6. If you add water to it, the pH will go up. If you distill it (vinegar is more volatile than water) the resulting distillate will have a lower pH.
Best Answer: Vinegar is not a pure substance and so has no chemical formula. Vinegar is mainly water (H2O), but makes vinegar acidic (and gives it its smell) is acetic acid, which has formula CH3COOH.Vinegar is usually only about 4-8% acetic acid.ating Newest Oldest. Best Answer: Vinegar is not a pure substance and so has no chemical formula. Vinegar is mainly water (H2O), but makes vinegar acidic (and gives it its smell) is acetic acid, which has formula CH3COOH. Vinegar is usually only about 4-8% acetic acid.