To calculate the amount of heat absorbed as a substance melts, which of the following information is not needed?
a.
the mass of the substance
c.
the change in temperature
b.
the specific heat of the substance
d.
the density of the sample

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.

Which correctly identifies the parts of a transverse wave? a: crest b: amplitude c: wavelength d: trough a: trough b: amplitude c: crest d: wavelength a: trough b: amplitude c: wavelength d: crest a: crest b: amplitude c: trough d: wavelength

Anonaqueous solution has a solvent that is not water. which is an example of a nonaqueous solution?