Balance the following equations. Enter 1 as a coefficient for reactants and products which have no coefficient. (NH4)2Cr2O7(s) _> Cr2O3(s)+N2(g)+H2O(g)

1. list three scientific reasons cockroaches may fly.

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

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space