Final answer:
Sodium chloride, or table salt, formed from the reaction of reactive sodium and poisonous chlorine, is non-toxic and essential for life, demonstrating that the properties of a compound differ significantly from the elements it is composed of.
Step-by-step explanation:
When sodium, a very reactive metal, reacts with chlorine, a highly toxic gas, the product formed is sodium chloride, also known as common table salt. Sodium chloride has properties vastly different from sodium or chlorine. While sodium reacts explosively with water and chlorine is very poisonous, sodium chloride is non-toxic and is actually essential to life. It is a white crystalline compound that dissolves in water without any explosive reactions.
Therefore, out of the given options concerning the properties of sodium chloride, the accurate statement is that the properties of sodium chloride cannot be determined to be poisonous or explosive based solely on the properties of the individual elements, sodium or chlorine. Instead, sodium chloride is a compound with its own distinct and non-hazardous properties, vital for our survival and commonly used in cooking and preservation.