In the reaction, 2na (s) + 2h2o (l) → 2naoh (aq) + h2 (g), which of the reactants or products is in the gas phase?

na

h2o

naoh

h2

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device

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.