What are automated weather stations? -Question Choices-
Locations with instruments that measure weather conditions in specific land area.
Numerical equations based on weather-related factors that forecast weather.
objects that carry instruments into the stratosphere to measure atmospheric conditions.
Structures that orbit Earth in the exosphere to capture images and collect data.

answer; i do believe the correct answer is (river); /// good luck

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.