Question

which chemical is used for weighting​

Answer 1

So, instead of weighing materials directly on the balance pan, always weigh the chemicals in or on something--a weighing dish, a beaker, or a piece of folded paper. When you do, remember to weigh the container first or adjust for its weight. Be careful not to spill any chemicals on or around the balance.

Answer 2

sorry...but I think I will answer you later