What is 1.44 g/ ml rounded to the nearest decimal

Anions are negative charged ions

B? i feel like this is a trick  

The internal energy of the system we can term it as total potential energy and kinetic energy. energy flows out of the surrounding from the system then we can say that the internal energy of the final state is lower than its initials. the sign of  δesystem is negative.δesystem = efinal - einitial=-ve  efinal  ∠einitial.

The image seems to be behind the mirror, but nothing is really there.just took the test.