Question

plz solve this question​

Answer 1

Answer:

Explanation:

20 molecules

Answer 2

Answer: 1.80066×10^23...no of oxygen atoms=1.80066×10^23.....no of hydrogen atoms =3.60132×10^23

Explanation: no moles =5.4/18=0.3

no of molecules=6.022×10^23×0.3=1.80066×10^23

no of oxgen atoms =1.80066×10^23

no of hydrogen atoms=2×no of oxygen atoms=3.60132×10^23