Question

1. sodium metal reacts violently with water and chlorine is a poisonous gas, yet we eat sodium chloride (table salt). why is this possible?

the properties of compounds are identical to the properties of the elements that form the compounds, and we should not eat sodium chloride because it is poisonous.
the properties of compounds are different from the properties of the elements that form the compounds.
the physical properties of compounds are different from the physical properties of the elements that form the compounds, but the chemical properties of the elements and compound are the same.
the chemical properties of compounds are different from the chemical properties of the elements that form the compounds, but the physical properties of the elements and compound are the same.

Explanation:

Answer:

The properties of compounds are different from the properties of the elements that form the compounds.