Answer: please see anbswer below
Explanation:
She made such prediction because When food colouring is added into hot water, the difussion ie spreading rate will be fast . This is due to the high kinetic energy of of the molecules which are randomly bouncing against each other causing the solution to mix faster.
When compared with water at room temperature and cold water, the particles are not moving as fast and the food coloring does not spread or diffuse as fast as the hot water because of the lower kinetic energy of molecules in the warm and cold water although the food coloring in warm water will spread faster than in the cold water.
For reactant side
- Zinc is neutral so oxidation no is 0
For product side
Oxidation no ne x
Loss of electron is oxidation
Option B