solid sodium chloride is dissolved in water. the sodium chloride solution is electrolysed in the apparatus. state why sodium chloride solution , rather than solid chloride must be used in this experiment.​

water solutions conducts charge

Explanation: solid sodium chloride is n insulator.NaCl is dissolved in water

In ionic forms. In solution there are Na+ and Cl- ions which can transfer charge.

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

your mom.com . : 0000