Agroup of students performed an experiment to prove the law of conservation of energy. in the experiment, a flask containing water at room temperature was shaken vigorously for a few minutes. the table shows a partial record of the temperature of the water before and after shaking. experimental record temperature before shaking 21 °c after shaking unknown what best predicts the unknown temperature?

The answer is 22 degrees. Law of conservation of energy stipulates that energy cannot be created or destroyed but can be transferred and also transformed from one form to another. The movement of the container, mechanical energy, was transferred to the water, as heat energy, and therefore raised the water temperatures slightly.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.