In a laboratory, Selima added five drops of hydrochloric acid to a container with sodium bicarbonate. Which observation helps her determine whether a chemical change has taken place?

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'