Answer:
Acid - A compound that increases hydrogen ions (H+) when it is dissolved in a solution
pH - A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
Base - A compound that increases hydroxide ions (OH−) when it is dissolved in a solution
Litmus paper - Used to measure the pH of substances by determining their hydrogen ion concentration
Force is a strength or energy as an attribute or physical action or movement, motion is the action or process of moving or being moved
There must be effective collisions between the reacting chemical particles in order for the chemical reaction to occur.
This question is hard but I found the answer from merit nation