Which statement describes the magnetic effect of a bar magnet

The field is most concentrated at the poles of the magnet

Explanation:

Magnetic fields are strongest at the poles of the magnet. At this place, they are most concentrated and have the biggest force.

A magnetic effect is produced in the vicinity of a magnetic body usually a bar magnet.

Magnetic fields are strongest in the region of the north and south pole. At every other points they are weaker.

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"