What evidence of a chemical reaction might you see in bleaching a stain

Rays from the sun are not considered matter true or false

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.

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.