The group VIA elements are called chalcogens because most ores of copper (Greek chalkos) are oxides or sulfides, and such ores contain traces of selenium and tellurium.
dependent variable I think
Answer:
I think it's a
Explanation:
not sure hssjkskaakakskksskksqoqkakskzksjsj
B
Heating a piece of iron until it glows.
#2 you multiply the numbers
Explanation:amiga
te
extrañar
