Find the 15th,18th, and,31st terms in the sequence a(n)=2+(n-)

15th term

Step-by-step explanation:

A(n)=2+(n-1)(-2)

A(15)=2+(15-1)(-2)

A(15)=2+(14)(-2)

A(15)=2+(-28)

A(15)=2-28

A(15)=-26

18th term

A(n)=2+(n-1)(-2)

A(18)=2+(18-1)(-2)

A(18)=2+(17)(-2)

A(18)=2+(-34)

A(18)=2-34

A(18)=-32

31st term

A(n)=2+(n-1)(-2)

A(31)=2+(31-1)(-2)

A(31)=2+(30)(-2)

A(31)=2+(-60)

A(31)=2-60

A(31)=-58

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

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step-by-step explanation: