In a c-br bond, the carbon has a partial negative charge. true or false

The given statement is false.

Explanation:

As it is known that bromine is more electronegative in nature than a carbon atom.

So in a C-Br bond, bromine being more elctronegative will attract the electrons from carbon atom more towards itself. Hence, bromine will obtain a partial negative charge and carbon will obtain a partial positive charge.

Thus, we can conclude that the statement in a C-Br bond, the carbon has a partial negative charge, is false.

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.