litmus paper test
The indicators that tell us if a substance is acidic or alkaline include litmus paper, pH paper, universal indicator solution, and phenolphthalein. These indicators change color based on the pH of the substance they are in contact with, helping to determine if it is acidic or alkaline.
The pH of the solution can tell if it is acidic or alkaline. For acids, pH will be 1 to 7 and for alkaline it will be around 8 to 14. pH of 7 is for neutral solution.
On an alkaline diet us tunaq fish alkaline or acid
Test the pH.
An indicator, for example Litmus.
The pH scale measures acidity or alkalinity of a substance. Substances with a pH below 7 are acidic, while those with a pH above 7 are alkaline. Litmus paper can also be used to distinguish between acids (turns red) and alkalis (turns blue).
You can measure the pH value, if the value is below 7, then it is an acid. (1 being the strongest, 7 being neutral.) There are also some indicators, phenopthalin (think that is what is it called) which will turn purple, when poured into an acid.
tense
they look nice or they tell us something
yes it does
because you guys are lying about something
i dont no