How many nitrate ions are there in 2,575 mg of cupric nitrate (MM=188 g/mol)? *
1.65x10^20 NO34-1 ions
O 1.65x10^21 NO3--1 ions
1.65x10^23 NO3--1 ions
O 1.65x10^22 NO34-1 ions

Ithink d hope that

The answer is 1.82 j/g°c                  

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.

Ithink it’s carbon dioxide