Question

HELP ME PLS
What is the mass of a water molecule if the hydrogens each have one neutron and the oxygen has eight neutrons?
a. 10
b. 12
c. 16
d. 20

Answer 1

Answer:

H2O

=(1×2)+(8)

=20

Explanation:

We have 1 Hydrogen(H) and 8 Oxygen(O)neutrons . Following the molecule formula, H2O, which means we have 2 Hydrogen that needs to times with 1 neutron;and we have only 1 Oxygen which has 8 neutrons. So 2 (H) have to times 1 and 1(O) have to times 8.