How many atoms of chlorine are in 1.90 mol of chlorine gas

How does chemistry affect our world? a. chemicals makes our world more polluted. b. chemicals keeps us healthy. c. chemicals can or hurt our world. d. chemicals make our world safe to live in.

Can someone me with 6 to 10 plz this is for masteries test.

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added