Nabr + caf2 → naf + cabr2 what coefficients are needed to balance the chemical equation? a) 1,1,1,1 b) 1,2,1,2 c) 1,2,2,1 d) 2,1,2,1

The correct answer is the D which 2,1,2,1.

2NaBr + CaF2 → 2NaF + CaBr2

distance, luminosity, brightness, radius, chemical composition, and temperature

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.