Which reaction is an example of an endothermic reaction? a ) a + b c + d + heat b) a + c b +d + light c) b + c a +d + electricity d) a + b + heat c + d a + c b + d + electricity

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n