Given the balanced equation representing reaction:
n2 + energy ==> n + n
which statement describes this reaction?
( i) bonds are broken, and the reaction is endothermic.
(2) bonds are broken , and the reaction is exothermic.
(3) bonds are formed, and the reaction is endothermic.
(4) bonds are formed, and the reaction is exothermic.

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

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.

Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?