A stock solution of copper (1000 ppm) is available. prepare 50 mL each of five standard solutions, giving the amount of the 1000 ppm solution required for each one and how you would proceed with the preparation, including the kind of pipet needed. The concentrations of the standard solutions should be 1, 2, 3, 4 and 5 ppm

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

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