The answer is
<span>
only carboxyl groups (=C=OO-</span>
It would be “To obey the law of conservation of mass”
Answer: The equation for kinetic energy is 
Explanation:
Kinetic energy is the energy possessed by the virtue of object's motion. It is defined as the work needed to move a body of a given mass from rest to its velocity.
Mathematically,

where,
m = mass of the body
v = velocity of the body.
Hence, above equation relates kinetic energy to the mass and velocity of the body.
<span>The vaporization of br2 from liquid to gas state requires 7.4 k/cal /mol.</span>