A drop of liquid bromine was put into a sealed glass jar. After some time, the bromine colour had spread to all parts of the jar. Explain this observation using the kinetic particle theory.
State how the colour of the halogens changes from chlorine to iodine.
State which physical states chlorine and iodine are in at room temperature and pressure. chlorine iodine
Chlorine is used in the manufacture of other chemicals. State one additional use of chlorine.
The molecular structure of a compound containing iodine and chlorine is shown. Deduce the molecular formula of this compound.
Fluorine reacts with aqueous sodium hydroxide to form sodium fluoride, NaF, water and oxygen. $2\text{F}_2 + 4\text{NaOH} \rightarrow 4\text{NaF} + 2\text{H}_2\text{O} + \text{O}_2$ Calculate the greatest volume of oxygen produced, in dm$^3$, at room temperature and pressure, when 0.037 mol of sodium hydroxide react completely with fluorine. Give your answer to two significant figures.