When a salt containing copper ions is analyzed by a flame test, a green flame is observed. which of the following statements describe how the electrons produce the green-colored flame?

Which one of the following gases is not an important component of soil?

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.