Which of the following best describes the process of electroplating?
a.) the application of a direct current to give an expensive metal the appearance and chemical resistance of a strong, cheap metal
b.) the application of a direct current to give a strong, cheap metal the appearance and chemical resistance of a more expensive metal
c.) the application of an alternating current to give an expensive metal the appearance and chemical resistance of a strong, cheap metal
d.) the application of an alternating current to give a strong, cheap metal the appearance and chemical resistance of a more expensive metal

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

Remember to use the proper number of significant figures and leading zeros in all calculations. gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

1. list three scientific reasons cockroaches may fly.