What is the identity of a sample that has a mass of 2.44 g and a volume of 0.34 cm3? 1. zinc 2. aluminum 3. copper 4. gold

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

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2

What is the oxidation state of each individual carbon atom in c2o42−?