Select the correct answer. a student places a 12-gram cube of ice inside a container. after six hours, the student returns to observe the contents of the container. which sentence suggests that the container is an open system? a. the container contains 12 grams of liquid water and no ice. b. the container contains 12 grams of ice and no liquid water. c. the container contains 8 grams of liquid water and no ice. d. the container contains 8 grams of ice and 4 grams of liquid water. e. the container contains 8 grams of liquid water and 4 grams of water vapor.

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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.