Whats the chemical formula for octahydrate? please explain how you got your answer <3

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

The graph shows one consequence of urban sprawl. how did urban sprawl contribute to the change in biodiversity