An unbalanced chemical equation for the reaction of boron fluoride with lithium sulfite is shown below. BF3 + Li2SO3 Right arrow. B2(SO3)3 + LiF What is the coefficient of lithium fluoride in the balanced chemical reaction? 1 3 4 6

the atomic mass is the bottom number on the element.

-steel jelly

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.