calculate the volume of hydrogen produced at s. t.p when 25g of zinc are added to excess dilute hydro chloric acid at 31 degree c and 778 mmHg pressure. H=1, Zn=65, Cl=35.5. Molar volume of gas at s. t.p=22.4dm3 Wikipedia show all workings

Which term refers to a property that depends only on the amount of a substance? ©@

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

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