How do the spectra produced by the excited gases differ from that produced by the hot metal filament? Do the atoms emit all frequencies of visible light?

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.

What is the formula of the ionic compound composed of calcium cations and chloride anions

Which words or phrases identify layers of groundwater? check all that apply. water table kettle lake saturation zone underground lake sinkhole will give brainiest, answer quickly.