what is the relationship between mass and weight?
a. they are the same concept.
b. weight is mass times the distance.
c. weight is mass times the acceleration of gravity.
d. mass is weight times the acceleration of gravity.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

What structural formula represents 4 electrons shared between two atoms?