What does a low number on the pH scale say about a solution? O A. The solution is changing, OB. The solution is an acid. O C. The solution is neutral. O D. The solution is a base,

B) The solution is an acid.

Explanation:

B

Explanation:

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.