Explain the role of ammonium sulphate in these preparations 2. Why are amine complexes of Cu(II) more intensely blue than the aqua complexes? 3. Why would a fifth NH3 added to [Cu(NH3)4(H2O)2] affect the spectrum differently to the first four NH3? 4. Why do Cu2+ complexes undergo more rapid ligand substitution than Co3+ complexes?

they are both synthetic elements

explanation:

d

58750.08068 is the answer i think

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.