Question

$\begin{cases}d(1)=\dfrac{1}{12}\\\\ d(n)=d(n-1)\cdot (-6) \end{cases}​$
what is the 4th term in the sequence

Answer 1

Answer:

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Answer 2

Answer:

ANSWER

Concept :-Base+H

+

→conjugate acid

NH

2

−

is a base, so it can accept a proton (H

+

) and from conjugate acid.

NH

2

−

(base)+H

+

→NH

3

(conjugate acid)

NH

3

is a base so, it can accept a proton(H

+

) and form conjugate acid.

NH

3

(base)+H

+

→NH

4

+

(conjugate acid)

HCOO

−

is a base so, it can accept a proton(H

+

) and form conjugate acid.

HCOO

−

(base)+H

+

→HCOOH(conjugate acid)