Calculate the amount of heat needed to boil 49.6g of hexane (C6H14), beginning from a temperature of 43.4°C.

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

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?

Acontrol during an experiment. might change remains constant does not exist does change