- 1. How do we build scientific knowledge?
A. Today we build on prior knowledge from the past
B. Many early science discoveries were foundational
C. All of the early science was not valid
D. Only current discoveries are important as we move fo

2b2t

explanation:

2b2t

i don't know people like to fight everywhere rip.

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.