Carbon dioxide gas (CO2) effuses 3.2 times faster than an unknown gas. Determine the molar mass of the unknown gas.

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.

Type the correct answer in each box. use numerals instead of words. the distance between earth and the moon is about 384,400 kilometers. the distance can be written in scientific notation as a × 10b kilometers, where a = and b = .

How is the electron sea model of metallic bonding different from the band theory? how are they the same? give at least one similarity and one difference between the models