Which of the following could be considered a scientific statement?
I believe there is life on other planets.
I observed that bees prefer red flowers.
I think cake tastes much better than cookies.
I consider yellow a cheerful color.

'I observed that bees prefer red flowers.

Explanation:

It is a scientific statement because they have not used phrases such as 'i think' or 'in my opinion' It has been observed that bees prefer red flowers

idk

explanation:

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.