What does Le Châtelier's principle state?
O
A. A reaction at equilibrium will go to completion when the
equilibrium is upset.
O
B. A reaction at equilibrium will respond to balance a change.
O
C. A reaction will form a new equilibrium ratio when the equilibrium is
upset.
O
D. A reaction at equilibrium will not respond to a change.

B. A reaction at equilibrium will respond to balance a change.

Explanation:

The Le Chatelier's principle states that a reaction will respond to balance a change. This is true for a reaction in chemical equilibrium.

Le Chatelier's principle sates that "if any conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".

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.