The reaction rate is the blank with which reactant turn into Products

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process