metals bond with halogens to form colorless metal halides. during an experiment, chlorine water was added to a solution of sodium iodide. a record of the experiment is shown.

experimental record
reactants: ci2 nai color of reactants: colorless solution color of reactants after mixing: brown colored solution is formed

which of the following conclusions can be made about this chemical reaction based on the data?
iodine is more reactive than chlorine.
sodium iodide and chlorine do not react.
sodium chloride is formed from a single replacement reaction.
iodine is colorless and is formed from a single replacement reaction.

Sodium chloride is formed from a single replacement reaction.

Explanation:

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.