Indicators change color based on the pH of the solution. You want to pick an indicator with a similar pKa (acid-dissociation constant) as the pH at which the reaction becomes what you desire it to be. Examples include phenolphthalein, bromthymol blue, and phenol red.
1-14
Oxalic acid,sodium oxalate or ammonium iron (II) sulfate.
bitter taste, slippery feel, and reactions with indicators (turns red litmus paper blue),ph more than 7
Indicators of chemical change are needed to detect when a chemical reaction has occurred. They can provide visual cues, such as color changes or gas production, that indicate a chemical transformation has taken place. These indicators help scientists and chemists monitor and understand the progress of reactions.
indicators that show a unit's daily routines.
They are indicators and vulnerabilities that tell adversaries where to focus their collection efforts
A measurement of economic indicators.
what are the indicators of true love?
Indicators
The natural indicators are blackberry and many other bright-coloured flowers make good natural indicators
Indicators are used frequently for testing pH; but many other indicators exist for other compounds or ions.
Some examples of acid-base activities that can be used to teach students about chemical reactions include: Mixing baking soda and vinegar to observe the fizzing reaction. Testing the pH of different household substances using pH paper or indicators. Conducting a titration experiment to determine the concentration of an acid or base. Demonstrating the neutralization reaction between an acid and a base using indicators like phenolphthalein.