Determine the number of moles of phosphorus contained in 4.41 x 10^24
atoms of phosphorus.

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

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device