Question

What is the blank?Elements are _____________ that cannot be broken down into other substances.

Answer 1

`"Elements are PURE SUBSTANCES that cannot be chemically "` `"broken down into other substances...."`

Explanation:

Whereas a `"compound"` is a pure substance, i.e. a material of constant chemical composition, with definite physical properties, i.e. melting point, boiling point, THAT CAN be broken down into its constituent elements.

And typically, a compound COULD be broken down into its constituent atoms....i.e. fpr `CO_2`...

`CO_2(g) rarr C(s) + O_2(g)`

The constituent elements, i.e. carbon and dioxygen, are pure substances, that cannot be chemically modified....