Answer:
diamond is denser because it is more tightly packed than coal
How about putting one battery in the freezer while putting another by a radiator or something that gives off heat. Leave them for an hour, then place them in an object that uses batteries and time how long it takes for it to die: Note: It may take many hours for the battery to fully deplete.
Answer:
A picture .There is high reactions in progression still the energy reaction reduced to indicate complete reaction.
Iron bromide isn't considered magnetic because all iron compounds are not magnetic
