I need chapter one section three

How many molecules are present in 3 mols of silicon dioxide (sio2)?

** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils

J. j. thomson’s experiment disproved the theory that an atom