HELP ASAP PLS a 35.0 g block of copper is dropped into 450 grams of water at 21.5 C. The temperature of the water changes to 22.3 C. Does the water's temperature rise or fall?

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.

Give one example of a pure (exact) number and of an estimated (measured) number.

Which statement describes covalent bases