Finding the current in the cylinder
A 57.0g hollow copper cylinder is 90.0cm long and has an inner diameter of 1.0 cm. The current density along the length of the cylinder is 1.60×10^5 A/m^2. What is the current in the cylinder?
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Hydrogen gas can be produced in the laboratory by the reaction of magnesium metal with hydrochloric acid. Identify the limiting reactant when 6.00 g HCI reacts with5.00 g Mg.
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