The chemical combination of two or more substances which can only be separated by chemical means is called a(n) a) element b) orbit c) mixture

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

What three things determine the shape and size of a puddle when water is poured out onto a surface

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .