Question 67
Tendai tests an unknown liquid by putting one drop of the liquid onto a piece of red and blue litmus paper. The red litmus paper is unchanged and the blue litmus paper turns red.
Tendai carefully drips the liquid into a beaker of sodium hydroxide solution.
What could Tendai do to monitor the reaction to see when it is complete?
Tendai carefully drips the liquid into a beaker of sodium hydroxide solution.
What could Tendai do to monitor the reaction to see when it is complete?
