Activity (continued from previous page) 3. Define: A phase change is a change from one state to another, such as from a liquid to a
gas. Based on what you have read in the Gizmo, fill in the blanks with the words "liquid."
"gas," or "solid" to define each change.
Evaporation:
Change from a
to a
to a
Condensation:
Change from a
to a
Change from a
Melting:
to a
Change from a
Freezing:
4. Practice: Fill in the process that causes each transition. Your choices are evaporation,
indensation, precipitation, melting, and freezing.

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.

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?