Answer:
B. NaCl
Explanation:
Which of these formulas represents 1 atom of sodium (Na) chemically combined with another element?
A. PbS. NO. There are not atoms of Na in this formula.
B. NaCl. YES. 1 atom of Na is combined with 1 atom of Cl.
C. 2NaOH. NO. 1 atom of Na is combined with 1 atom of O and 1 atom of H, thus, it is combined with more than 1 element.
D. Na₂H₃IO₆. NO. There are 2 atoms of Na in this formula.
