Which subatomic particle has a negative charge? a) proton b) electron c) neutron d) all particles

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

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

Find the mass, in grams, of 5.00*10^23 molecules of f2