Question

In an experiment to" verify the law of conservation of mass" , four student A, B, C, D noted down the following observations of the difference in mass of the apparatus before and after the chemical reaction.
A - 4g, B - 8g , C- 0g ,D - 10g
which student performed the experiment correctly and why?

Answer 1

Student C performed the experiment carefully as the difference between the masses before and after the experiment is zero i.e the mass before and after the experiment remains the same