Name the family that is composed of all gases

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride