Answer:
Therefore,

Step-by-step explanation:
Simplify
-2^3

It is read as negative 2 raised to the power three,
also it is the cube of negative 2
we know that
given as

so for negative a i.e -a

substituting a = 2 we get

negative sign multiplied by odd number of times then the sign remains negative.
Therefore,

Answer:
Na20+H20 -> 2NaOH
Step-by-step explanation:
Answer:
V = πr²h
Step-by-step explanation:
Volume = π(radius)² * height