Given the equation representing a reaction: What is the number of moles of C that must completely react to produce 2.0 moles of C2H6? A) 1.0 mol B) 2.0 mol C) 3.0 mol D) 4.0 mol

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

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.