The molar mass of AA is 40.0 g/molg/mol , and the molar mass of BB is 60.0 g/molg/mol . What are the lowest whole-number coefficients of AA and BB in the balanced chemical equation? Match the numbers in the left column to the appropriate blanks in the sentences on the right.

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.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)