The number of water molecules in a drop of water weighing 0.018 g is
A. 6.022 × 1026
B. 6.022 × 1023
C. 6.022 × 1020
D. 9.9 × 1022
Answer:C
The number of water molecules in a drop of water weighing 0.018 g is
A. 6.022 × 1026 B. 6.022 × 1023 C. 6.022 × 1020 D. 9.9 × 1022