Find the % water in this hydrate:
ZnSO4 x 7H20
need help asap

What layer of the atmosphere is directly above the troposphere?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

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.