Given the balanced equation representing a reaction:
ch4(g) + 2o2(g) --> 2h2o(g) + co2(g) + heat
which statement is true about energy in this reaction?
(1) the reaction is exothermic because it releases heat.
(2) the reaction is exothermic because it absorbs heat.
(3) the reaction is endothermic because it releases heat.
(4) the reaction is endothermic because it absorbs heat.

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.