Look at the image below: which of the following statements is true? a. the figure is an atom and an element. b. the figure is a molecule and a compound. c. the figure is a molecule and an element. d. the figure is a compound, but not a molecule.

In the given image, we can see two differently colored spheres joined together to form a combination and there are 5 such combinations.If each small sphere represents an atom, then each combination represents a molecule of a compound. This is because an element contains only similar type of atoms. A compound contains two or more different types of atoms.

Therefore, the figure is a molecule and a compound.

For this reason,  statement B is true.

here we have to get the change of moles on decrease the volume of the reaction in gas phase.

the   per the given options it will decrease by (d) 11-50%

we know, on decreasing the volume of the gas phase reaction the reaction moves to the product side.

the reaction:                     so₂cl₂ (g) = so₂ (g) + cl₂ (g)         total

the moles at equilibrium:   1 - α                 α               α           = 1+α

concentrations:                   1 - α               α               α           = 1 + α

(concentration = moles/volume, as volume is 1 l)

(where α is the degree of dissociation)

now the dissociation constant in terms of concentration is :

=  

or,

or,   = (at v = 1l)

the reaction:                     so₂cl₂ (g) = so₂ (g) + cl₂ (g)         total

the moles at equilibrium:   1 - α                 α               α           = 1+α

concentrations:               (1 - α)/0.5           α/0.5         α/0.5       = (1 + α)/0.5

thus, the dissociation constant in terms of concentration is :

or,  

=  

so, the change of 1 : 1/0.5

or, 1: 2

thus it will decrease by 50%.

or, as per the given options it will decrease by 11-50%

my dad did alot of meth and ace cheeks