At which temperature would an object radiate the least amount of electromagnetic energy?
1the boiling point of water (100°C)
2the temperature at the stratopause (0°C
3the temperature of the North Pole on December 21 (-60°F)
4room temperature (293 K).

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.

c

explanation:

here are some of the ways in which chemical and nuclear reactions differ.

explanation: