Write any three characteristics of Acids,Bases, and Indicators ?
Answers
Answer:
Acids Bases
Acid gives off hydrogen ions when dissolved in water. Bases give off hydroxyl ion when dissolved in water.
It turns blue colour litmus paper into red. It turns red colour litmus paper into blue.
It has a sour taste. It has bitter taste and soapy to touch.
Answer:
Bases:– General Characteristics of Bases:
pH > 7.
Bitter taste.
Slippery feel.
Increases the OH- concentration in water.
Accepts OH- ions.
Turns red litmus indicator blue.
Acid :– Aqueous solutions of acids are electrolytes, meaning that they conduct an electrical current. ...
Acids have a sour taste. ...
Acids change the color of certain acid-base indicators. ...
Acids react with active metals to yield hydrogen gas.
Indicator:– Valid: accurate measure of a behaviour, practice, task that is the expected output or outcome of the intervention.
Reliable: consistently measurable over time, in the same way by different observers.
Precise: operationally defined in clear terms.