See picture for explanation.
If you have any questions, let me know.
Answer:
An input of heat energy Yr don't you know stupied
It says on google
<span>An acid-base indicator (e.g., phenolphthalein) changes color depending on the pH. Redox indicators are also frequently used. A drop of indicator solution is added to the titration at the start; when the color changes the endpoint has been reached, this is an approximation of the equivalence point.</span>
Answer:
Halogen Family of elements
Explanation:
Group Seventeen
