Multiple products are possible in these ortho, para-directed reactions depending on whether the substitution occurs at the ortho position or the para position. Additionally, some groups are strong activators, resulting in multiple substitutions per arene ring, while others are moderate activators such that only a single substitution occurs.

What is the independent variable in this investigation? mass volume sample number substance density

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.

The ammonia molecule in the diagram has the observed bond orientation because