12. how would you classify an element from a compound
a. element and compound are composed of one substances
b. element and compounds are composed two or more substances
c. elements and compounds are can be broken down into splinter forms
d. elements and compounds are cannot be broken down into splinters
13. which of the following is not correctly matched
a. Salt: Na and CI : Element
b. Water: H and O: Compound
c. Carbon dioxide: C and O: Compound
d. Magnesium chloride: Mg and CI: Compound​