Na2so4+hcl=nacl+so2+h2o

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.