Help, please. What is the mass of a sample of NH3 containing 6.3 × 1024 molecules of NH3? (5 points)
157 grams
178 grams
182 grams
198 grams

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

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.

What is the popular use of lithium batteries