Asolution is made by mixing of heptane and of benzene . calculate the mole fraction of heptane in this solution. round your answer to significant digits.

a. they are both space stations

happy to

pls mark as brainliest.

i'm pretty sure it is letter c.) car

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

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.