The value of resistance r was determined by measuring current I flowing through the resistance with an error E1=±1.5% and power loss p in it with an error E2=±1.0%. Determine the maximum possible relative error to be expected on measuring resistance r, calculated from the formula r=p/I²​

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

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

Give the orbital configuration of the phosphorus (p) atom.