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What is an unknown substance in solution is slippery to touch dissolves easily in water and turns litmus paper blue?
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A change in what property permit certains materials to act as indicators?
An unknown substance in a solution is slippery to the touch dissolves easily in water and makes litmus paper turns blue
An unknown substance is added to a solution and the pH increases The substance is best described as what?
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.
What is the purpose of adding an indicator to an unknown solution?
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 for A glass of milk is in the kitchen table for a week .?
what is the unknown substance of a glass of milk for a week
What is titrand?
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.
A change in what property permit certains materials to act as indicators?
An unknown substance in a solution is slippery to the touch dissolves easily in water and makes litmus paper turns blue
An unknown substance is added to a solution and the pH increases The substance is best described as what?
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.
What is the purpose of adding an indicator to an unknown solution?
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 an unknown solid substance is non polar will it matter if distilled or tap water is used to prepare a solution of this substance?
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.
An unknown substance placed into a solution caused a chemical reaction to take place faster and at a lower temperature than usual The substance was probably?
a catalyst
How do you test for monosaccarides?
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.
Is sodium hydroxide unknown solution?
Sodium hydroxide is not an unknown solution.
What is the unknown substance for A glass of milk is in the kitchen table for a week .?
what is the unknown substance of a glass of milk for a week
What is titrand?
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.
An unknown compound dissolves in water but the solution does not conduct electricity?
If a compound dissolves into water and allows for the conductance of electrical current its said to be ionic and an electrolyte. Sodium chloride (NaCl) or table salt exhibits this property. Sugar is a compound that will dissolve in water but not conduct current. Sugar is not an electrolyte or ionic; rather a covalent molecule.
A scientist has analyzed the chemicals that make of sample of an unknown substance Which chemicals would be the best indicator that the unknown substance is a plant?
Cellulose and starch
A scientist has analyzed the chemicals that make of a sample of an unknown substance. Which chemicals would be the best indicator that the unknown substance is a plant?
cellulose and starch
