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When a student added iodine to an unknown solution the solution turned a dark color. This color change indicated that the solution contained a. lipids c. DNA?
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Is sodium hydroxide unknown solution?
Sodium hydroxide is not an unknown solution.
What is the pH if solution makes phenolphthalein stay clear?
your unknown solution made methyl red turn yellow. it also made phenolphthalein stay clear. what rang of pH does your unknown solution have?
What metal ion would you predict to be contained in sample of unknown 1?
Strontium and copper nitrate
When HCl is added to the unknown solution bubble form what is the compound in the colorless solution?
dilute hydrochloric acid
Why is tasting or feeling an unknown solution not good way to determine whether the solution is acidic or alkaline?
This solution may be toxic, corrosive or radioactive.
Is sodium hydroxide unknown solution?
Sodium hydroxide is not an unknown solution.
Who was buried in the tomb of the unknown soldier?
In most countries, the tomb of the unknown soldier is exactly that. The remains of an unknown and unidentified are contained in it.
What does the word unknown mean in math?
Usually in algebra the term "unknown" is used for a variable ( commonly designated as x ) you are trying to solve for. For instance the mathematical expression 2 + x = 5 may be presented to the student as a problem. The answer is to solve for the unknown or x. The solution would be x = 3
What is signal unknown signal received error message in FPGA xilinx software?
Any signal would have four states high indicated by 1, low indicated by 0, high impedance indicated by Z and unknown indicated by X. An unknown signal often occurs when you have not connected the pin to anything or you are trying to take output from the pin while it is not really giving the proper output
Contained in the chart to determine which unknown substance could be lithium?
D
What do you use to solve for the unknown variable?
Equations are used to find the solution to the unknown variable.
What is the pH if solution makes phenolphthalein stay clear?
your unknown solution made methyl red turn yellow. it also made phenolphthalein stay clear. what rang of pH does your unknown solution have?
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 does unkown mean in maths?
Usually in algebra the term "unknown" is used for a variable ( commonly designated as x ) you are trying to solve for. For instance the mathematical expression 2 + x = 5 may be presented to the student as a problem. The answer is to solve for the unknown or x. The solution would be x = 3
How can you identify Sulphate anions in a unknown solution?
Dip a copper coin in that unknown solution And make that solution slightly acidic. After about one hour, take out the copper coin and if there are green colours deposits then there is sulphate, otherwise not.
What is the function of the phenanthroline solution that is added to the unknown iron solution?
phenanthroline is used as a redox indicator
What metal ion would you predict to be contained in sample of unknown 1?
Strontium and copper nitrate
