Chlorine is a gas, bromine is a liquid, and iodine is a solid because of differences in the strength of their
a. hydrogen bonds.
b. dispersion forces.
c. dipole interactions.
d. polar bonds.

The London dispersion forces become progressively stronger. At a low enough temperature the molecules will all be solids. At a high enough temperature they will all be gases. It is only at temperatures between -7 °C and 59 °C that fluorine and chlorine are gases, bromine is a solid, and iodine is a solid

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.