How much does the temperature of a cup of 57.2 grams of water increase (water's specific heat is 4.18 J/g°C) when a heated 92.4 g block of Gold (whose specific heat is .129J/gºC) is
dropped in and experiences a temperature change of 20.4 degrees Celsius?

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Amixture with the same composition throughout is!

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.