I really need help with apex chemistry lab 1.4.3 conservation of energy dry lab! I’m desperate at this point!

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Compare and contrast physical changes with chemical changes.

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