Four containers made of different materials each containing water at 30°c were set out on a table. the initial temperature of the water was recorded. the temperature of the water was also recorded 15 minutes later. which container was the most effective at preventing heat transfer from the water to the environment

i can ! i just need to know what the paragraph is! : p

1.solid

2.carbon dioxide

3.helium

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.