When the sample is placed in the oven, the alcohol and water evaporate. List all other chemicals including spectator ions that must be washed from the sample before it is dried.

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.