Answer:
A feasible error could have been the removal of the sample before all water evaporated.
Explanation:
In order to determine the percentage of water in an hydrate, an experiment that could be performed is the heating of the sample until the mass does not change. If the student heated the sample an insufficient amount of time, water will be present in the sample, thus reducing the percentage reported.
Veces is Spanish word for times.Hope I helped.
The correct answer is C) A substance changes color when heated, but changes back when cooled. Hope this helps.
<span>valence electrons is our answer cuz i am good at chemstry</span>
