The unknown substance would have to be a basic solution. At least more basic than the initial solution. The pH scale ranges from 0,Most acidic, to 14, Most Basic. If the pH of your solution increases when the unknown substance is added, then it would lead you to believe that the added substance is of a basic nature.
An acid.
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
what is the unknown substance of a glass of milk for a week
There are answers elsewhere on the web. In summary, a titrand is the solution (or other substance) which one has in a conical flask or beaker into which the titrant is titrated from a burette.
Cellulose and starch
Do not taste the substance. Do not put the substance in your eyes or on your bare skin.
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
If the substance is nonpolar it will not dissolve in either distilled or tap water. It will not make a solution with water. You will have to use a nonpolar solvent.
a catalyst
You place Benedict's solution (blue solution) and the unknown substance (possibly containing monosaccarides) into a beaker and then heat it for approximately 5 minutes. If the substance contains monosaccarides, the solution will turn from blue to orange.
Sodium hydroxide is not an unknown solution.
what is the unknown substance of a glass of milk for a week
There are answers elsewhere on the web. In summary, a titrand is the solution (or other substance) which one has in a conical flask or beaker into which the titrant is titrated from a burette.
Cellulose and starch
cellulose and starch
Cellulose and starch
unknown
You think probable to an atom.