If 34.9g of water is measured out, how many moles is that?

1.94 moles

Explanation:

because moles =mass/mr

=34.9/18

which gives 1.938 so we round it up to 1.94

mr of H2O is 18

hope this helps :)

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.