Answer:
Chemical properties
Atomic number. The atomic number indicates the number of protons within the core of an atom.
Atomic mass. The name indicates the mass of an atom, expressed in atomic mass units (AMU).
Electronegativity according to Pauling.
Density.
Melting point.
Boiling point.
Vanderwaal's radius.
Ionic radius.
And many more.
Explanation:
Answer:
1.89 nol Cu(NO3)2
Explanation:
if you calculate it it will be 1.89
The whitening toothpastes showed differences in their physical-chemical properties. All toothpastes promoted changes to the surface, probably by the use of a bleaching agent.
