Halogens on directly opposite carbons in a benzene ring are in the:

para-position

meta-position

ortho-position

none of the above

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

Element before carbon on the periodic table